Home / 8,474,495.40-12,711,743.10-7,777,765.80

Finding the Fourth Proportional to 8,474,495.40, 12,711,743.10 and 7,777,765.80

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Solution

The fourth proportional to 8,474,495.40, 12,711,743.10 and 7,777,765.80 is: 11,666,648.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,474,495.40 : 12,711,743.10 = 7,777,765.80 : x
  2. Step 2: Convert to fraction form
    8,474,495.40/12,711,743.10 = 7,777,765.80/x
  3. Step 3: Cross multiply
    8,474,495.40x = 12,711,743.10 × 7,777,765.80
  4. Step 4: Simplify right side
    8,474,495.40x = 98,868,960,741,565.97
  5. Step 5: Solve for x
    x = 98,868,960,741,565.97/8,474,495.40
  6. Step 6: Final answer
    x = 11,666,648.70

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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.