Home / 12,474,494.20-18,711,741.30-7,666,593.40

Finding the Fourth Proportional to 12,474,494.20, 18,711,741.30 and 7,666,593.40

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Solution

The fourth proportional to 12,474,494.20, 18,711,741.30 and 7,666,593.40 is: 11,499,890.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474,494.20 : 18,711,741.30 = 7,666,593.40 : x
  2. Step 2: Convert to fraction form
    12,474,494.20/18,711,741.30 = 7,666,593.40/x
  3. Step 3: Cross multiply
    12,474,494.20x = 18,711,741.30 × 7,666,593.40
  4. Step 4: Simplify right side
    12,474,494.20x = 143,455,312,353,087.44
  5. Step 5: Solve for x
    x = 143,455,312,353,087.44/12,474,494.20
  6. Step 6: Final answer
    x = 11,499,890.10

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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.