Home / 12,245,655.70-18,347,488.35-7,983,630.10

Finding the Fourth Proportional to 12,245,655.70, 18,347,488.35 and 7,983,630.10

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Solution

The fourth proportional to 12,245,655.70, 18,347,488.35 and 7,983,630.10 is: 11,961,757.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245,655.70 : 18,347,488.35 = 7,983,630.10 : x
  2. Step 2: Convert to fraction form
    12,245,655.70/18,347,488.35 = 7,983,630.10/x
  3. Step 3: Cross multiply
    12,245,655.70x = 18,347,488.35 × 7,983,630.10
  4. Step 4: Simplify right side
    12,245,655.70x = 146,479,560,250,459.34
  5. Step 5: Solve for x
    x = 146,479,560,250,459.34/12,245,655.70
  6. Step 6: Final answer
    x = 11,961,757.20

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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.