Home / 8,381,729.80-12,553,932.30-7,261,985.80

Finding the Fourth Proportional to 8,381,729.80, 12,553,932.30 and 7,261,985.80

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Solution

The fourth proportional to 8,381,729.80, 12,553,932.30 and 7,261,985.80 is: 10,876,809.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,381,729.80 : 12,553,932.30 = 7,261,985.80 : x
  2. Step 2: Convert to fraction form
    8,381,729.80/12,553,932.30 = 7,261,985.80/x
  3. Step 3: Cross multiply
    8,381,729.80x = 12,553,932.30 × 7,261,985.80
  4. Step 4: Simplify right side
    8,381,729.80x = 91,166,478,096,761.34
  5. Step 5: Solve for x
    x = 91,166,478,096,761.34/8,381,729.80
  6. Step 6: Final answer
    x = 10,876,809.47

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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.