Home / 5,257,998.90-7,886,998.35-5,187,140.10

Finding the Fourth Proportional to 5,257,998.90, 7,886,998.35 and 5,187,140.10

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Solution

The fourth proportional to 5,257,998.90, 7,886,998.35 and 5,187,140.10 is: 7,780,710.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257,998.90 : 7,886,998.35 = 5,187,140.10 : x
  2. Step 2: Convert to fraction form
    5,257,998.90/7,886,998.35 = 5,187,140.10/x
  3. Step 3: Cross multiply
    5,257,998.90x = 7,886,998.35 × 5,187,140.10
  4. Step 4: Simplify right side
    5,257,998.90x = 40,910,965,409,918.83
  5. Step 5: Solve for x
    x = 40,910,965,409,918.83/5,257,998.90
  6. Step 6: Final answer
    x = 7,780,710.15

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Double scale
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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.