Home / 131,868,002.70-197,802,004.05-91,053,333.90

Finding the Fourth Proportional to 131,868,002.70, 197,802,004.05 and 91,053,333.90

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Solution

The fourth proportional to 131,868,002.70, 197,802,004.05 and 91,053,333.90 is: 136,580,000.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,868,002.70 : 197,802,004.05 = 91,053,333.90 : x
  2. Step 2: Convert to fraction form
    131,868,002.70/197,802,004.05 = 91,053,333.90/x
  3. Step 3: Cross multiply
    131,868,002.70x = 197,802,004.05 × 91,053,333.90
  4. Step 4: Simplify right side
    131,868,002.70x = 18,010,531,920,853,804
  5. Step 5: Solve for x
    x = 18,010,531,920,853,804/131,868,002.70
  6. Step 6: Final answer
    x = 136,580,000.85

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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.