Home / 129,488,468.20-194,232,702.30-100,578,077.80

Finding the Fourth Proportional to 129,488,468.20, 194,232,702.30 and 100,578,077.80

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Solution

The fourth proportional to 129,488,468.20, 194,232,702.30 and 100,578,077.80 is: 150,867,116.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,488,468.20 : 194,232,702.30 = 100,578,077.80 : x
  2. Step 2: Convert to fraction form
    129,488,468.20/194,232,702.30 = 100,578,077.80/x
  3. Step 3: Cross multiply
    129,488,468.20x = 194,232,702.30 × 100,578,077.80
  4. Step 4: Simplify right side
    129,488,468.20x = 19,535,551,843,233,640
  5. Step 5: Solve for x
    x = 19,535,551,843,233,640/129,488,468.20
  6. Step 6: Final answer
    x = 150,867,116.70

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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.