Home / 187,489,340.45-258,825,008.87-124,869,647.42

Finding the Fourth Proportional to 187,489,340.45, 258,825,008.87 and 124,869,647.42

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Solution

The fourth proportional to 187,489,340.45, 258,825,008.87 and 124,869,647.42 is: 172,379,867.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,489,340.45 : 258,825,008.87 = 124,869,647.42 : x
  2. Step 2: Convert to fraction form
    187,489,340.45/258,825,008.87 = 124,869,647.42/x
  3. Step 3: Cross multiply
    187,489,340.45x = 258,825,008.87 × 124,869,647.42
  4. Step 4: Simplify right side
    187,489,340.45x = 32,319,387,602,024,724
  5. Step 5: Solve for x
    x = 32,319,387,602,024,724/187,489,340.45
  6. Step 6: Final answer
    x = 172,379,867.17

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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.