Home / 1,009,301,247.90-1,513,951,871.85-986,626,431.90

Finding the Fourth Proportional to 1,009,301,247.90, 1,513,951,871.85 and 986,626,431.90

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Solution

The fourth proportional to 1,009,301,247.90, 1,513,951,871.85 and 986,626,431.90 is: 1,479,939,647.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,301,247.90 : 1,513,951,871.85 = 986,626,431.90 : x
  2. Step 2: Convert to fraction form
    1,009,301,247.90/1,513,951,871.85 = 986,626,431.90/x
  3. Step 3: Cross multiply
    1,009,301,247.90x = 1,513,951,871.85 × 986,626,431.90
  4. Step 4: Simplify right side
    1,009,301,247.90x = 1,493,704,933,391,691,520
  5. Step 5: Solve for x
    x = 1,493,704,933,391,691,520/1,009,301,247.90
  6. Step 6: Final answer
    x = 1,479,939,647.85

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Half scale
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Double scale
Find fourth proportional to 1,009,301,248.90, 1,513,951,873.35 and 986,626,432.90
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.