Home / 13,013,778.78-17,948,543.04-11,440,546.80

Finding the Fourth Proportional to 13,013,778.78, 17,948,543.04 and 11,440,546.80

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Solution

The fourth proportional to 13,013,778.78, 17,948,543.04 and 11,440,546.80 is: 15,778,748.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013,778.78 : 17,948,543.04 = 11,440,546.80 : x
  2. Step 2: Convert to fraction form
    13,013,778.78/17,948,543.04 = 11,440,546.80/x
  3. Step 3: Cross multiply
    13,013,778.78x = 17,948,543.04 × 11,440,546.80
  4. Step 4: Simplify right side
    13,013,778.78x = 205,341,146,640,934.28
  5. Step 5: Solve for x
    x = 205,341,146,640,934.28/13,013,778.78
  6. Step 6: Final answer
    x = 15,778,748.83

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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.