Home / 137,071,719.91-189,147,729.88-75,192,058.47

Finding the Fourth Proportional to 137,071,719.91, 189,147,729.88 and 75,192,058.47

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Solution

The fourth proportional to 137,071,719.91, 189,147,729.88 and 75,192,058.47 is: 103,758,872.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,071,719.91 : 189,147,729.88 = 75,192,058.47 : x
  2. Step 2: Convert to fraction form
    137,071,719.91/189,147,729.88 = 75,192,058.47/x
  3. Step 3: Cross multiply
    137,071,719.91x = 189,147,729.88 × 75,192,058.47
  4. Step 4: Simplify right side
    137,071,719.91x = 14,222,407,164,554,602
  5. Step 5: Solve for x
    x = 14,222,407,164,554,602/137,071,719.91
  6. Step 6: Final answer
    x = 103,758,872.90

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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.