Home / 151,581,456-209,169,695.52-89,690,950.08

Finding the Fourth Proportional to 151,581,456, 209,169,695.52 and 89,690,950.08

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Solution

The fourth proportional to 151,581,456, 209,169,695.52 and 89,690,950.08 is: 123,765,988.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,581,456 : 209,169,695.52 = 89,690,950.08 : x
  2. Step 2: Convert to fraction form
    151,581,456/209,169,695.52 = 89,690,950.08/x
  3. Step 3: Cross multiply
    151,581,456x = 209,169,695.52 × 89,690,950.08
  4. Step 4: Simplify right side
    151,581,456x = 18,760,628,719,133,120
  5. Step 5: Solve for x
    x = 18,760,628,719,133,120/151,581,456
  6. Step 6: Final answer
    x = 123,765,988.36

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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.