Home / 20,982,355.60-31,473,533.40-12,458,304.40

Finding the Fourth Proportional to 20,982,355.60, 31,473,533.40 and 12,458,304.40

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Solution

The fourth proportional to 20,982,355.60, 31,473,533.40 and 12,458,304.40 is: 18,687,456.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,982,355.60 : 31,473,533.40 = 12,458,304.40 : x
  2. Step 2: Convert to fraction form
    20,982,355.60/31,473,533.40 = 12,458,304.40/x
  3. Step 3: Cross multiply
    20,982,355.60x = 31,473,533.40 × 12,458,304.40
  4. Step 4: Simplify right side
    20,982,355.60x = 392,106,859,640,766.94
  5. Step 5: Solve for x
    x = 392,106,859,640,766.94/20,982,355.60
  6. Step 6: Final answer
    x = 18,687,456.60

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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.