Home / 8,128,051.40-12,192,077.10-7,344,230.60

Finding the Fourth Proportional to 8,128,051.40, 12,192,077.10 and 7,344,230.60

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Solution

The fourth proportional to 8,128,051.40, 12,192,077.10 and 7,344,230.60 is: 11,016,345.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128,051.40 : 12,192,077.10 = 7,344,230.60 : x
  2. Step 2: Convert to fraction form
    8,128,051.40/12,192,077.10 = 7,344,230.60/x
  3. Step 3: Cross multiply
    8,128,051.40x = 12,192,077.10 × 7,344,230.60
  4. Step 4: Simplify right side
    8,128,051.40x = 89,541,425,715,379.25
  5. Step 5: Solve for x
    x = 89,541,425,715,379.25/8,128,051.40
  6. Step 6: Final answer
    x = 11,016,345.90

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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.