Home / 131,127,409.89-180,951,085.67-72,388,816.29

Finding the Fourth Proportional to 131,127,409.89, 180,951,085.67 and 72,388,816.29

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Solution

The fourth proportional to 131,127,409.89, 180,951,085.67 and 72,388,816.29 is: 99,893,949.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,127,409.89 : 180,951,085.67 = 72,388,816.29 : x
  2. Step 2: Convert to fraction form
    131,127,409.89/180,951,085.67 = 72,388,816.29/x
  3. Step 3: Cross multiply
    131,127,409.89x = 180,951,085.67 × 72,388,816.29
  4. Step 4: Simplify right side
    131,127,409.89x = 13,098,834,897,679,738
  5. Step 5: Solve for x
    x = 13,098,834,897,679,738/131,127,409.89
  6. Step 6: Final answer
    x = 99,893,949.78

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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.