Home / 13,806,728.76-20,713,082.70-5,287,065.60

Finding the Fourth Proportional to 13,806,728.76, 20,713,082.70 and 5,287,065.60

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Solution

The fourth proportional to 13,806,728.76, 20,713,082.70 and 5,287,065.60 is: 7,931,743.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,806,728.76 : 20,713,082.70 = 5,287,065.60 : x
  2. Step 2: Convert to fraction form
    13,806,728.76/20,713,082.70 = 5,287,065.60/x
  3. Step 3: Cross multiply
    13,806,728.76x = 20,713,082.70 × 5,287,065.60
  4. Step 4: Simplify right side
    13,806,728.76x = 109,511,427,013,125.11
  5. Step 5: Solve for x
    x = 109,511,427,013,125.11/13,806,728.76
  6. Step 6: Final answer
    x = 7,931,743.20

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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.