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Finding the Fourth Proportional to 8,791,828.80, 13,171,996.80 and 7,532,116.80

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Solution

The fourth proportional to 8,791,828.80, 13,171,996.80 and 7,532,116.80 is: 11,284,684.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791,828.80 : 13,171,996.80 = 7,532,116.80 : x
  2. Step 2: Convert to fraction form
    8,791,828.80/13,171,996.80 = 7,532,116.80/x
  3. Step 3: Cross multiply
    8,791,828.80x = 13,171,996.80 × 7,532,116.80
  4. Step 4: Simplify right side
    8,791,828.80x = 99,213,018,386,826.25
  5. Step 5: Solve for x
    x = 99,213,018,386,826.25/8,791,828.80
  6. Step 6: Final answer
    x = 11,284,684.98

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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.