Home / 13,013,780.28-17,948,545.11-11,440,548.30

Finding the Fourth Proportional to 13,013,780.28, 17,948,545.11 and 11,440,548.30

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Solution

The fourth proportional to 13,013,780.28, 17,948,545.11 and 11,440,548.30 is: 15,778,750.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013,780.28 : 17,948,545.11 = 11,440,548.30 : x
  2. Step 2: Convert to fraction form
    13,013,780.28/17,948,545.11 = 11,440,548.30/x
  3. Step 3: Cross multiply
    13,013,780.28x = 17,948,545.11 × 11,440,548.30
  4. Step 4: Simplify right side
    13,013,780.28x = 205,341,197,245,683.81
  5. Step 5: Solve for x
    x = 205,341,197,245,683.81/13,013,780.28
  6. Step 6: Final answer
    x = 15,778,750.90

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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.