Home / 7,381,138.80-11,071,708.20-6,205,407.60

Finding the Fourth Proportional to 7,381,138.80, 11,071,708.20 and 6,205,407.60

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Solution

The fourth proportional to 7,381,138.80, 11,071,708.20 and 6,205,407.60 is: 9,308,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381,138.80 : 11,071,708.20 = 6,205,407.60 : x
  2. Step 2: Convert to fraction form
    7,381,138.80/11,071,708.20 = 6,205,407.60/x
  3. Step 3: Cross multiply
    7,381,138.80x = 11,071,708.20 × 6,205,407.60
  4. Step 4: Simplify right side
    7,381,138.80x = 68,704,462,209,262.31
  5. Step 5: Solve for x
    x = 68,704,462,209,262.31/7,381,138.80
  6. Step 6: Final answer
    x = 9,308,111.40

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Similar ratio
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1.5x scale

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.