Home / 186,829,055.16-280,123,832.34-77,729,908.92

Finding the Fourth Proportional to 186,829,055.16, 280,123,832.34 and 77,729,908.92

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Solution

The fourth proportional to 186,829,055.16, 280,123,832.34 and 77,729,908.92 is: 116,545,041.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,829,055.16 : 280,123,832.34 = 77,729,908.92 : x
  2. Step 2: Convert to fraction form
    186,829,055.16/280,123,832.34 = 77,729,908.92/x
  3. Step 3: Cross multiply
    186,829,055.16x = 280,123,832.34 × 77,729,908.92
  4. Step 4: Simplify right side
    186,829,055.16x = 21,773,999,974,109,548
  5. Step 5: Solve for x
    x = 21,773,999,974,109,548/186,829,055.16
  6. Step 6: Final answer
    x = 116,545,041.43

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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.