Home / 20,856,867.32-28,782,041.10-11,437,522.04

Finding the Fourth Proportional to 20,856,867.32, 28,782,041.10 and 11,437,522.04

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Solution

The fourth proportional to 20,856,867.32, 28,782,041.10 and 11,437,522.04 is: 15,783,541.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,856,867.32 : 28,782,041.10 = 11,437,522.04 : x
  2. Step 2: Convert to fraction form
    20,856,867.32/28,782,041.10 = 11,437,522.04/x
  3. Step 3: Cross multiply
    20,856,867.32x = 28,782,041.10 × 11,437,522.04
  4. Step 4: Simplify right side
    20,856,867.32x = 329,195,229,437,435.81
  5. Step 5: Solve for x
    x = 329,195,229,437,435.81/20,856,867.32
  6. Step 6: Final answer
    x = 15,783,541.43

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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.