Home / 8,172,293.22-11,278,854.81-5,280,100.56

Finding the Fourth Proportional to 8,172,293.22, 11,278,854.81 and 5,280,100.56

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Solution

The fourth proportional to 8,172,293.22, 11,278,854.81 and 5,280,100.56 is: 7,287,243.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172,293.22 : 11,278,854.81 = 5,280,100.56 : x
  2. Step 2: Convert to fraction form
    8,172,293.22/11,278,854.81 = 5,280,100.56/x
  3. Step 3: Cross multiply
    8,172,293.22x = 11,278,854.81 × 5,280,100.56
  4. Step 4: Simplify right side
    8,172,293.22x = 59,553,487,598,439.70
  5. Step 5: Solve for x
    x = 59,553,487,598,439.70/8,172,293.22
  6. Step 6: Final answer
    x = 7,287,243.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.