Home / 87,822,654.72-121,155,519.60-53,004,215.04

Finding the Fourth Proportional to 87,822,654.72, 121,155,519.60 and 53,004,215.04

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Solution

The fourth proportional to 87,822,654.72, 121,155,519.60 and 53,004,215.04 is: 73,121,829.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,822,654.72 : 121,155,519.60 = 53,004,215.04 : x
  2. Step 2: Convert to fraction form
    87,822,654.72/121,155,519.60 = 53,004,215.04/x
  3. Step 3: Cross multiply
    87,822,654.72x = 121,155,519.60 × 53,004,215.04
  4. Step 4: Simplify right side
    87,822,654.72x = 6,421,753,214,161,334
  5. Step 5: Solve for x
    x = 6,421,753,214,161,334/87,822,654.72
  6. Step 6: Final answer
    x = 73,121,829.84

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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.