Home / 129,979,086.80-179,375,477.65-71,241,902.43

Finding the Fourth Proportional to 129,979,086.80, 179,375,477.65 and 71,241,902.43

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Solution

The fourth proportional to 129,979,086.80, 179,375,477.65 and 71,241,902.43 is: 98,316,202.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,979,086.80 : 179,375,477.65 = 71,241,902.43 : x
  2. Step 2: Convert to fraction form
    129,979,086.80/179,375,477.65 = 71,241,902.43/x
  3. Step 3: Cross multiply
    129,979,086.80x = 179,375,477.65 × 71,241,902.43
  4. Step 4: Simplify right side
    129,979,086.80x = 12,779,050,276,855,152
  5. Step 5: Solve for x
    x = 12,779,050,276,855,152/129,979,086.80
  6. Step 6: Final answer
    x = 98,316,202.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.