Home / 510,964,596.90-766,435,829.13-142,489,717.11

Finding the Fourth Proportional to 510,964,596.90, 766,435,829.13 and 142,489,717.11

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Solution

The fourth proportional to 510,964,596.90, 766,435,829.13 and 142,489,717.11 is: 213,731,489.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,964,596.90 : 766,435,829.13 = 142,489,717.11 : x
  2. Step 2: Convert to fraction form
    510,964,596.90/766,435,829.13 = 142,489,717.11/x
  3. Step 3: Cross multiply
    510,964,596.90x = 766,435,829.13 × 142,489,717.11
  4. Step 4: Simplify right side
    510,964,596.90x = 109,209,224,475,702,000
  5. Step 5: Solve for x
    x = 109,209,224,475,702,000/510,964,596.90
  6. Step 6: Final answer
    x = 213,731,489.69

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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.