Home / 1,010,983,421.90-1,516,475,132.85-838,654,820.30

Finding the Fourth Proportional to 1,010,983,421.90, 1,516,475,132.85 and 838,654,820.30

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Solution

The fourth proportional to 1,010,983,421.90, 1,516,475,132.85 and 838,654,820.30 is: 1,257,982,230.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,983,421.90 : 1,516,475,132.85 = 838,654,820.30 : x
  2. Step 2: Convert to fraction form
    1,010,983,421.90/1,516,475,132.85 = 838,654,820.30/x
  3. Step 3: Cross multiply
    1,010,983,421.90x = 1,516,475,132.85 × 838,654,820.30
  4. Step 4: Simplify right side
    1,010,983,421.90x = 1,271,799,180,029,735,168
  5. Step 5: Solve for x
    x = 1,271,799,180,029,735,168/1,010,983,421.90
  6. Step 6: Final answer
    x = 1,257,982,230.45

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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.