Home / 28,007,500.74-42,012,563.31-13,613,410.32

Finding the Fourth Proportional to 28,007,500.74, 42,012,563.31 and 13,613,410.32

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Solution

The fourth proportional to 28,007,500.74, 42,012,563.31 and 13,613,410.32 is: 20,420,753.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007,500.74 : 42,012,563.31 = 13,613,410.32 : x
  2. Step 2: Convert to fraction form
    28,007,500.74/42,012,563.31 = 13,613,410.32/x
  3. Step 3: Cross multiply
    28,007,500.74x = 42,012,563.31 × 13,613,410.32
  4. Step 4: Simplify right side
    28,007,500.74x = 571,934,262,934,007.38
  5. Step 5: Solve for x
    x = 571,934,262,934,007.38/28,007,500.74
  6. Step 6: Final answer
    x = 20,420,753.29

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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.