Home / 20,594,512.28-28,418,548.38-12,220,438.88

Finding the Fourth Proportional to 20,594,512.28, 28,418,548.38 and 12,220,438.88

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Solution

The fourth proportional to 20,594,512.28, 28,418,548.38 and 12,220,438.88 is: 16,863,090.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,594,512.28 : 28,418,548.38 = 12,220,438.88 : x
  2. Step 2: Convert to fraction form
    20,594,512.28/28,418,548.38 = 12,220,438.88/x
  3. Step 3: Cross multiply
    20,594,512.28x = 28,418,548.38 × 12,220,438.88
  4. Step 4: Simplify right side
    20,594,512.28x = 347,287,133,536,113
  5. Step 5: Solve for x
    x = 347,287,133,536,113/20,594,512.28
  6. Step 6: Final answer
    x = 16,863,090.94

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1.5x scale

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.