Home / 115,538,947.80-159,460,860.80-73,156,446.61

Finding the Fourth Proportional to 115,538,947.80, 159,460,860.80 and 73,156,446.61

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Solution

The fourth proportional to 115,538,947.80, 159,460,860.80 and 73,156,446.61 is: 100,966,731.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,538,947.80 : 159,460,860.80 = 73,156,446.61 : x
  2. Step 2: Convert to fraction form
    115,538,947.80/159,460,860.80 = 73,156,446.61/x
  3. Step 3: Cross multiply
    115,538,947.80x = 159,460,860.80 × 73,156,446.61
  4. Step 4: Simplify right side
    115,538,947.80x = 11,665,589,949,499,842
  5. Step 5: Solve for x
    x = 11,665,589,949,499,842/115,538,947.80
  6. Step 6: Final answer
    x = 100,966,731.75

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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.