Home / 40,986,629.40-61,479,944.10-12,619,781.40

Finding the Fourth Proportional to 40,986,629.40, 61,479,944.10 and 12,619,781.40

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Solution

The fourth proportional to 40,986,629.40, 61,479,944.10 and 12,619,781.40 is: 18,929,672.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,986,629.40 : 61,479,944.10 = 12,619,781.40 : x
  2. Step 2: Convert to fraction form
    40,986,629.40/61,479,944.10 = 12,619,781.40/x
  3. Step 3: Cross multiply
    40,986,629.40x = 61,479,944.10 × 12,619,781.40
  4. Step 4: Simplify right side
    40,986,629.40x = 775,863,455,026,219.75
  5. Step 5: Solve for x
    x = 775,863,455,026,219.75/40,986,629.40
  6. Step 6: Final answer
    x = 18,929,672.10

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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.