Home / 102,789,769.50-141,881,640.63-66,120,343.74

Finding the Fourth Proportional to 102,789,769.50, 141,881,640.63 and 66,120,343.74

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Solution

The fourth proportional to 102,789,769.50, 141,881,640.63 and 66,120,343.74 is: 91,266,503.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,789,769.50 : 141,881,640.63 = 66,120,343.74 : x
  2. Step 2: Convert to fraction form
    102,789,769.50/141,881,640.63 = 66,120,343.74/x
  3. Step 3: Cross multiply
    102,789,769.50x = 141,881,640.63 × 66,120,343.74
  4. Step 4: Simplify right side
    102,789,769.50x = 9,381,262,848,850,750
  5. Step 5: Solve for x
    x = 9,381,262,848,850,750/102,789,769.50
  6. Step 6: Final answer
    x = 91,266,503.41

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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.