Home / 13,425,951.76-18,522,953.28-8,782,387.36

Finding the Fourth Proportional to 13,425,951.76, 18,522,953.28 and 8,782,387.36

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Solution

The fourth proportional to 13,425,951.76, 18,522,953.28 and 8,782,387.36 is: 12,116,515.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425,951.76 : 18,522,953.28 = 8,782,387.36 : x
  2. Step 2: Convert to fraction form
    13,425,951.76/18,522,953.28 = 8,782,387.36/x
  3. Step 3: Cross multiply
    13,425,951.76x = 18,522,953.28 × 8,782,387.36
  4. Step 4: Simplify right side
    13,425,951.76x = 162,675,750,756,142.53
  5. Step 5: Solve for x
    x = 162,675,750,756,142.53/13,425,951.76
  6. Step 6: Final answer
    x = 12,116,515.36

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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.