Home / 115,313,925.12-158,988,695.04-73,987,906.56

Finding the Fourth Proportional to 115,313,925.12, 158,988,695.04 and 73,987,906.56

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Solution

The fourth proportional to 115,313,925.12, 158,988,695.04 and 73,987,906.56 is: 102,010,582.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,313,925.12 : 158,988,695.04 = 73,987,906.56 : x
  2. Step 2: Convert to fraction form
    115,313,925.12/158,988,695.04 = 73,987,906.56/x
  3. Step 3: Cross multiply
    115,313,925.12x = 158,988,695.04 × 73,987,906.56
  4. Step 4: Simplify right side
    115,313,925.12x = 11,763,240,712,715,856
  5. Step 5: Solve for x
    x = 11,763,240,712,715,856/115,313,925.12
  6. Step 6: Final answer
    x = 102,010,582.85

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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.