Home / 28,338,655.20-42,513,231.60-9,170,037.60

Finding the Fourth Proportional to 28,338,655.20, 42,513,231.60 and 9,170,037.60

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Solution

The fourth proportional to 28,338,655.20, 42,513,231.60 and 9,170,037.60 is: 13,756,754.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,338,655.20 : 42,513,231.60 = 9,170,037.60 : x
  2. Step 2: Convert to fraction form
    28,338,655.20/42,513,231.60 = 9,170,037.60/x
  3. Step 3: Cross multiply
    28,338,655.20x = 42,513,231.60 × 9,170,037.60
  4. Step 4: Simplify right side
    28,338,655.20x = 389,847,932,269,508.19
  5. Step 5: Solve for x
    x = 389,847,932,269,508.19/28,338,655.20
  6. Step 6: Final answer
    x = 13,756,754.85

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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.