Home / 1,073,126,418.60-1,609,689,627.90-392,587,487.40

Finding the Fourth Proportional to 1,073,126,418.60, 1,609,689,627.90 and 392,587,487.40

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Solution

The fourth proportional to 1,073,126,418.60, 1,609,689,627.90 and 392,587,487.40 is: 588,881,231.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073,126,418.60 : 1,609,689,627.90 = 392,587,487.40 : x
  2. Step 2: Convert to fraction form
    1,073,126,418.60/1,609,689,627.90 = 392,587,487.40/x
  3. Step 3: Cross multiply
    1,073,126,418.60x = 1,609,689,627.90 × 392,587,487.40
  4. Step 4: Simplify right side
    1,073,126,418.60x = 631,944,006,511,101,952
  5. Step 5: Solve for x
    x = 631,944,006,511,101,952/1,073,126,418.60
  6. Step 6: Final answer
    x = 588,881,231.10

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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.