Home / 80,258,540.40-120,387,810.60-19,674,266.40

Finding the Fourth Proportional to 80,258,540.40, 120,387,810.60 and 19,674,266.40

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Solution

The fourth proportional to 80,258,540.40, 120,387,810.60 and 19,674,266.40 is: 29,511,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,258,540.40 : 120,387,810.60 = 19,674,266.40 : x
  2. Step 2: Convert to fraction form
    80,258,540.40/120,387,810.60 = 19,674,266.40/x
  3. Step 3: Cross multiply
    80,258,540.40x = 120,387,810.60 × 19,674,266.40
  4. Step 4: Simplify right side
    80,258,540.40x = 2,368,541,857,057,143.50
  5. Step 5: Solve for x
    x = 2,368,541,857,057,143.50/80,258,540.40
  6. Step 6: Final answer
    x = 29,511,399.60

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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.