Home / 129,688,229.42-194,532,104.26-42,249,642.02

Finding the Fourth Proportional to 129,688,229.42, 194,532,104.26 and 42,249,642.02

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Solution

The fourth proportional to 129,688,229.42, 194,532,104.26 and 42,249,642.02 is: 63,374,384.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,688,229.42 : 194,532,104.26 = 42,249,642.02 : x
  2. Step 2: Convert to fraction form
    129,688,229.42/194,532,104.26 = 42,249,642.02/x
  3. Step 3: Cross multiply
    129,688,229.42x = 194,532,104.26 × 42,249,642.02
  4. Step 4: Simplify right side
    129,688,229.42x = 8,218,911,766,382,317
  5. Step 5: Solve for x
    x = 8,218,911,766,382,317/129,688,229.42
  6. Step 6: Final answer
    x = 63,374,384.89

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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.