Home / 145,156,987.10-217,593,763.05-129,851,486.30

Finding the Fourth Proportional to 145,156,987.10, 217,593,763.05 and 129,851,486.30

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Solution

The fourth proportional to 145,156,987.10, 217,593,763.05 and 129,851,486.30 is: 194,650,454.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,156,987.10 : 217,593,763.05 = 129,851,486.30 : x
  2. Step 2: Convert to fraction form
    145,156,987.10/217,593,763.05 = 129,851,486.30/x
  3. Step 3: Cross multiply
    145,156,987.10x = 217,593,763.05 × 129,851,486.30
  4. Step 4: Simplify right side
    145,156,987.10x = 28,254,873,541,652,524
  5. Step 5: Solve for x
    x = 28,254,873,541,652,524/145,156,987.10
  6. Step 6: Final answer
    x = 194,650,454.70

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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.