Home / 20,851,248.20-31,254,062.70-7,381,142.60

Finding the Fourth Proportional to 20,851,248.20, 31,254,062.70 and 7,381,142.60

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Solution

The fourth proportional to 20,851,248.20, 31,254,062.70 and 7,381,142.60 is: 11,063,639.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,851,248.20 : 31,254,062.70 = 7,381,142.60 : x
  2. Step 2: Convert to fraction form
    20,851,248.20/31,254,062.70 = 7,381,142.60/x
  3. Step 3: Cross multiply
    20,851,248.20x = 31,254,062.70 × 7,381,142.60
  4. Step 4: Simplify right side
    20,851,248.20x = 230,690,693,618,041
  5. Step 5: Solve for x
    x = 230,690,693,618,041/20,851,248.20
  6. Step 6: Final answer
    x = 11,063,639.52

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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.