Home / 8,065,620.40-12,098,430.60-7,449,761.20

Finding the Fourth Proportional to 8,065,620.40, 12,098,430.60 and 7,449,761.20

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Solution

The fourth proportional to 8,065,620.40, 12,098,430.60 and 7,449,761.20 is: 11,174,641.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065,620.40 : 12,098,430.60 = 7,449,761.20 : x
  2. Step 2: Convert to fraction form
    8,065,620.40/12,098,430.60 = 7,449,761.20/x
  3. Step 3: Cross multiply
    8,065,620.40x = 12,098,430.60 × 7,449,761.20
  4. Step 4: Simplify right side
    8,065,620.40x = 90,130,418,864,772.72
  5. Step 5: Solve for x
    x = 90,130,418,864,772.72/8,065,620.40
  6. Step 6: Final answer
    x = 11,174,641.80

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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.