Home / 80,906,878.53-111,681,855.14-53,031,385.13

Finding the Fourth Proportional to 80,906,878.53, 111,681,855.14 and 53,031,385.13

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Solution

The fourth proportional to 80,906,878.53, 111,681,855.14 and 53,031,385.13 is: 73,203,213.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,906,878.53 : 111,681,855.14 = 53,031,385.13 : x
  2. Step 2: Convert to fraction form
    80,906,878.53/111,681,855.14 = 53,031,385.13/x
  3. Step 3: Cross multiply
    80,906,878.53x = 111,681,855.14 × 53,031,385.13
  4. Step 4: Simplify right side
    80,906,878.53x = 5,922,643,471,138,644
  5. Step 5: Solve for x
    x = 5,922,643,471,138,644/80,906,878.53
  6. Step 6: Final answer
    x = 73,203,213.11

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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.