Home / 12,781,909.73-17,639,470.73-7,559,394.75

Finding the Fourth Proportional to 12,781,909.73, 17,639,470.73 and 7,559,394.75

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Solution

The fourth proportional to 12,781,909.73, 17,639,470.73 and 7,559,394.75 is: 10,432,222.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,909.73 : 17,639,470.73 = 7,559,394.75 : x
  2. Step 2: Convert to fraction form
    12,781,909.73/17,639,470.73 = 7,559,394.75/x
  3. Step 3: Cross multiply
    12,781,909.73x = 17,639,470.73 × 7,559,394.75
  4. Step 4: Simplify right side
    12,781,909.73x = 133,343,722,448,039.17
  5. Step 5: Solve for x
    x = 133,343,722,448,039.17/12,781,909.73
  6. Step 6: Final answer
    x = 10,432,222.20

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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.