Home / 20,757,228.66-31,138,820.28-6,381,503.64

Finding the Fourth Proportional to 20,757,228.66, 31,138,820.28 and 6,381,503.64

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Solution

The fourth proportional to 20,757,228.66, 31,138,820.28 and 6,381,503.64 is: 9,573,170.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757,228.66 : 31,138,820.28 = 6,381,503.64 : x
  2. Step 2: Convert to fraction form
    20,757,228.66/31,138,820.28 = 6,381,503.64/x
  3. Step 3: Cross multiply
    20,757,228.66x = 31,138,820.28 × 6,381,503.64
  4. Step 4: Simplify right side
    20,757,228.66x = 198,712,494,962,125.81
  5. Step 5: Solve for x
    x = 198,712,494,962,125.81/20,757,228.66
  6. Step 6: Final answer
    x = 9,573,170.78

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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.