Home / 12,140,485.12-16,761,679.68-7,791,446.08

Finding the Fourth Proportional to 12,140,485.12, 16,761,679.68 and 7,791,446.08

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Solution

The fourth proportional to 12,140,485.12, 16,761,679.68 and 7,791,446.08 is: 10,757,207.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,140,485.12 : 16,761,679.68 = 7,791,446.08 : x
  2. Step 2: Convert to fraction form
    12,140,485.12/16,761,679.68 = 7,791,446.08/x
  3. Step 3: Cross multiply
    12,140,485.12x = 16,761,679.68 × 7,791,446.08
  4. Step 4: Simplify right side
    12,140,485.12x = 130,597,723,436,951.66
  5. Step 5: Solve for x
    x = 130,597,723,436,951.66/12,140,485.12
  6. Step 6: Final answer
    x = 10,757,207.98

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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.