Home / 510,389,740.20-763,883,999.10-469,575,071.40

Finding the Fourth Proportional to 510,389,740.20, 763,883,999.10 and 469,575,071.40

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Solution

The fourth proportional to 510,389,740.20, 763,883,999.10 and 469,575,071.40 is: 702,797,989.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,389,740.20 : 763,883,999.10 = 469,575,071.40 : x
  2. Step 2: Convert to fraction form
    510,389,740.20/763,883,999.10 = 469,575,071.40/x
  3. Step 3: Cross multiply
    510,389,740.20x = 763,883,999.10 × 469,575,071.40
  4. Step 4: Simplify right side
    510,389,740.20x = 358,700,883,418,700,032
  5. Step 5: Solve for x
    x = 358,700,883,418,700,032/510,389,740.20
  6. Step 6: Final answer
    x = 702,797,989.78

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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.