Home / 28,340,998.20-42,516,746.10-9,172,380.60

Finding the Fourth Proportional to 28,340,998.20, 42,516,746.10 and 9,172,380.60

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Solution

The fourth proportional to 28,340,998.20, 42,516,746.10 and 9,172,380.60 is: 13,760,269.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,340,998.20 : 42,516,746.10 = 9,172,380.60 : x
  2. Step 2: Convert to fraction form
    28,340,998.20/42,516,746.10 = 9,172,380.60/x
  3. Step 3: Cross multiply
    28,340,998.20x = 42,516,746.10 × 9,172,380.60
  4. Step 4: Simplify right side
    28,340,998.20x = 389,979,777,102,765.69
  5. Step 5: Solve for x
    x = 389,979,777,102,765.69/28,340,998.20
  6. Step 6: Final answer
    x = 13,760,269.64

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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.