Home / 20,464,281.87-28,240,565.32-11,171,851.94

Finding the Fourth Proportional to 20,464,281.87, 28,240,565.32 and 11,171,851.94

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Solution

The fourth proportional to 20,464,281.87, 28,240,565.32 and 11,171,851.94 is: 15,417,077.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,464,281.87 : 28,240,565.32 = 11,171,851.94 : x
  2. Step 2: Convert to fraction form
    20,464,281.87/28,240,565.32 = 11,171,851.94/x
  3. Step 3: Cross multiply
    20,464,281.87x = 28,240,565.32 × 11,171,851.94
  4. Step 4: Simplify right side
    20,464,281.87x = 315,499,414,401,079.44
  5. Step 5: Solve for x
    x = 315,499,414,401,079.44/20,464,281.87
  6. Step 6: Final answer
    x = 15,417,077.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.