Home / 216,703,115.49-325,053,796.72-78,496,377.87

Finding the Fourth Proportional to 216,703,115.49, 325,053,796.72 and 78,496,377.87

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Solution

The fourth proportional to 216,703,115.49, 325,053,796.72 and 78,496,377.87 is: 117,744,249.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,703,115.49 : 325,053,796.72 = 78,496,377.87 : x
  2. Step 2: Convert to fraction form
    216,703,115.49/325,053,796.72 = 78,496,377.87/x
  3. Step 3: Cross multiply
    216,703,115.49x = 325,053,796.72 × 78,496,377.87
  4. Step 4: Simplify right side
    216,703,115.49x = 25,515,545,655,411,292
  5. Step 5: Solve for x
    x = 25,515,545,655,411,292/216,703,115.49
  6. Step 6: Final answer
    x = 117,744,249.30

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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.