Home / 72,414,110.10-108,621,165.15-21,301,295.70

Finding the Fourth Proportional to 72,414,110.10, 108,621,165.15 and 21,301,295.70

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Solution

The fourth proportional to 72,414,110.10, 108,621,165.15 and 21,301,295.70 is: 31,951,943.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,414,110.10 : 108,621,165.15 = 21,301,295.70 : x
  2. Step 2: Convert to fraction form
    72,414,110.10/108,621,165.15 = 21,301,295.70/x
  3. Step 3: Cross multiply
    72,414,110.10x = 108,621,165.15 × 21,301,295.70
  4. Step 4: Simplify right side
    72,414,110.10x = 2,313,771,558,138,685
  5. Step 5: Solve for x
    x = 2,313,771,558,138,685/72,414,110.10
  6. Step 6: Final answer
    x = 31,951,943.55

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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.