Home / 629,860,497.40-944,790,746.10-398,577,374.20

Finding the Fourth Proportional to 629,860,497.40, 944,790,746.10 and 398,577,374.20

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Solution

The fourth proportional to 629,860,497.40, 944,790,746.10 and 398,577,374.20 is: 597,866,061.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,860,497.40 : 944,790,746.10 = 398,577,374.20 : x
  2. Step 2: Convert to fraction form
    629,860,497.40/944,790,746.10 = 398,577,374.20/x
  3. Step 3: Cross multiply
    629,860,497.40x = 944,790,746.10 × 398,577,374.20
  4. Step 4: Simplify right side
    629,860,497.40x = 376,572,214,748,996,864
  5. Step 5: Solve for x
    x = 376,572,214,748,996,864/629,860,497.40
  6. Step 6: Final answer
    x = 597,866,061.30

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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.