Home / 151,346,358.56-208,857,972.72-81,731,737.40

Finding the Fourth Proportional to 151,346,358.56, 208,857,972.72 and 81,731,737.40

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Solution

The fourth proportional to 151,346,358.56, 208,857,972.72 and 81,731,737.40 is: 112,789,796.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,346,358.56 : 208,857,972.72 = 81,731,737.40 : x
  2. Step 2: Convert to fraction form
    151,346,358.56/208,857,972.72 = 81,731,737.40/x
  3. Step 3: Cross multiply
    151,346,358.56x = 208,857,972.72 × 81,731,737.40
  4. Step 4: Simplify right side
    151,346,358.56x = 17,070,324,979,509,606
  5. Step 5: Solve for x
    x = 17,070,324,979,509,606/151,346,358.56
  6. Step 6: Final answer
    x = 112,789,796.48

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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.