Home / 10,431,099.20-15,646,648.80-5,329,265.60

Finding the Fourth Proportional to 10,431,099.20, 15,646,648.80 and 5,329,265.60

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Solution

The fourth proportional to 10,431,099.20, 15,646,648.80 and 5,329,265.60 is: 7,993,898.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431,099.20 : 15,646,648.80 = 5,329,265.60 : x
  2. Step 2: Convert to fraction form
    10,431,099.20/15,646,648.80 = 5,329,265.60/x
  3. Step 3: Cross multiply
    10,431,099.20x = 15,646,648.80 × 5,329,265.60
  4. Step 4: Simplify right side
    10,431,099.20x = 83,385,147,205,121.28
  5. Step 5: Solve for x
    x = 83,385,147,205,121.28/10,431,099.20
  6. Step 6: Final answer
    x = 7,993,898.40

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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.