Home / 20,725,187.20-31,087,780.80-7,260,265.60

Finding the Fourth Proportional to 20,725,187.20, 31,087,780.80 and 7,260,265.60

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Solution

The fourth proportional to 20,725,187.20, 31,087,780.80 and 7,260,265.60 is: 10,890,398.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725,187.20 : 31,087,780.80 = 7,260,265.60 : x
  2. Step 2: Convert to fraction form
    20,725,187.20/31,087,780.80 = 7,260,265.60/x
  3. Step 3: Cross multiply
    20,725,187.20x = 31,087,780.80 × 7,260,265.60
  4. Step 4: Simplify right side
    20,725,187.20x = 225,705,545,522,580.47
  5. Step 5: Solve for x
    x = 225,705,545,522,580.47/20,725,187.20
  6. Step 6: Final answer
    x = 10,890,398.40

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1.5x scale

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.