Home / 142,691,319.66-196,912,938.87-77,501,690.22

Finding the Fourth Proportional to 142,691,319.66, 196,912,938.87 and 77,501,690.22

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Solution

The fourth proportional to 142,691,319.66, 196,912,938.87 and 77,501,690.22 is: 106,951,744.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,691,319.66 : 196,912,938.87 = 77,501,690.22 : x
  2. Step 2: Convert to fraction form
    142,691,319.66/196,912,938.87 = 77,501,690.22/x
  3. Step 3: Cross multiply
    142,691,319.66x = 196,912,938.87 × 77,501,690.22
  4. Step 4: Simplify right side
    142,691,319.66x = 15,261,085,588,612,536
  5. Step 5: Solve for x
    x = 15,261,085,588,612,536/142,691,319.66
  6. Step 6: Final answer
    x = 106,951,744.68

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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.