Home / 81,807,778.91-112,894,656.32-45,138,351.71

Finding the Fourth Proportional to 81,807,778.91, 112,894,656.32 and 45,138,351.71

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Solution

The fourth proportional to 81,807,778.91, 112,894,656.32 and 45,138,351.71 is: 62,290,882.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,807,778.91 : 112,894,656.32 = 45,138,351.71 : x
  2. Step 2: Convert to fraction form
    81,807,778.91/112,894,656.32 = 45,138,351.71/x
  3. Step 3: Cross multiply
    81,807,778.91x = 112,894,656.32 × 45,138,351.71
  4. Step 4: Simplify right side
    81,807,778.91x = 5,095,878,703,151,734
  5. Step 5: Solve for x
    x = 5,095,878,703,151,734/81,807,778.91
  6. Step 6: Final answer
    x = 62,290,882.00

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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.