Home / 8,517,860.40-12,776,790.60-7,902,001.20

Finding the Fourth Proportional to 8,517,860.40, 12,776,790.60 and 7,902,001.20

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Solution

The fourth proportional to 8,517,860.40, 12,776,790.60 and 7,902,001.20 is: 11,853,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,517,860.40 : 12,776,790.60 = 7,902,001.20 : x
  2. Step 2: Convert to fraction form
    8,517,860.40/12,776,790.60 = 7,902,001.20/x
  3. Step 3: Cross multiply
    8,517,860.40x = 12,776,790.60 × 7,902,001.20
  4. Step 4: Simplify right side
    8,517,860.40x = 100,962,214,653,348.72
  5. Step 5: Solve for x
    x = 100,962,214,653,348.72/8,517,860.40
  6. Step 6: Final answer
    x = 11,853,001.80

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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.