Home / 130,572,211.82-180,189,382.88-71,834,736.20

Finding the Fourth Proportional to 130,572,211.82, 180,189,382.88 and 71,834,736.20

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Solution

The fourth proportional to 130,572,211.82, 180,189,382.88 and 71,834,736.20 is: 99,131,787.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,572,211.82 : 180,189,382.88 = 71,834,736.20 : x
  2. Step 2: Convert to fraction form
    130,572,211.82/180,189,382.88 = 71,834,736.20/x
  3. Step 3: Cross multiply
    130,572,211.82x = 180,189,382.88 × 71,834,736.20
  4. Step 4: Simplify right side
    130,572,211.82x = 12,943,856,784,504,234
  5. Step 5: Solve for x
    x = 12,943,856,784,504,234/130,572,211.82
  6. Step 6: Final answer
    x = 99,131,787.73

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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.