Home / 16,781,990.47-23,158,978.79-9,339,527.81

Finding the Fourth Proportional to 16,781,990.47, 23,158,978.79 and 9,339,527.81

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Solution

The fourth proportional to 16,781,990.47, 23,158,978.79 and 9,339,527.81 is: 12,888,454.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,781,990.47 : 23,158,978.79 = 9,339,527.81 : x
  2. Step 2: Convert to fraction form
    16,781,990.47/23,158,978.79 = 9,339,527.81/x
  3. Step 3: Cross multiply
    16,781,990.47x = 23,158,978.79 × 9,339,527.81
  4. Step 4: Simplify right side
    16,781,990.47x = 216,293,926,471,604.97
  5. Step 5: Solve for x
    x = 216,293,926,471,604.97/16,781,990.47
  6. Step 6: Final answer
    x = 12,888,454.85

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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.