Home / 5,325,337.20-7,988,005.80-4,427,792.40

Finding the Fourth Proportional to 5,325,337.20, 7,988,005.80 and 4,427,792.40

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Solution

The fourth proportional to 5,325,337.20, 7,988,005.80 and 4,427,792.40 is: 6,641,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,325,337.20 : 7,988,005.80 = 4,427,792.40 : x
  2. Step 2: Convert to fraction form
    5,325,337.20/7,988,005.80 = 4,427,792.40/x
  3. Step 3: Cross multiply
    5,325,337.20x = 7,988,005.80 × 4,427,792.40
  4. Step 4: Simplify right side
    5,325,337.20x = 35,369,231,372,395.92
  5. Step 5: Solve for x
    x = 35,369,231,372,395.92/5,325,337.20
  6. Step 6: Final answer
    x = 6,641,688.60

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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.