Home / 7,240,721.60-10,862,540.40-2,123,141.60

Finding the Fourth Proportional to 7,240,721.60, 10,862,540.40 and 2,123,141.60

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Solution

The fourth proportional to 7,240,721.60, 10,862,540.40 and 2,123,141.60 is: 3,185,139.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240,721.60 : 10,862,540.40 = 2,123,141.60 : x
  2. Step 2: Convert to fraction form
    7,240,721.60/10,862,540.40 = 2,123,141.60/x
  3. Step 3: Cross multiply
    7,240,721.60x = 10,862,540.40 × 2,123,141.60
  4. Step 4: Simplify right side
    7,240,721.60x = 23,062,711,404,920.64
  5. Step 5: Solve for x
    x = 23,062,711,404,920.64/7,240,721.60
  6. Step 6: Final answer
    x = 3,185,139.92

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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.