Home / 452,719,921.60-679,079,882.40-278,380,701.55

Finding the Fourth Proportional to 452,719,921.60, 679,079,882.40 and 278,380,701.55

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Solution

The fourth proportional to 452,719,921.60, 679,079,882.40 and 278,380,701.55 is: 417,571,052.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,719,921.60 : 679,079,882.40 = 278,380,701.55 : x
  2. Step 2: Convert to fraction form
    452,719,921.60/679,079,882.40 = 278,380,701.55/x
  3. Step 3: Cross multiply
    452,719,921.60x = 679,079,882.40 × 278,380,701.55
  4. Step 4: Simplify right side
    452,719,921.60x = 189,042,734,071,003,488
  5. Step 5: Solve for x
    x = 189,042,734,071,003,488/452,719,921.60
  6. Step 6: Final answer
    x = 417,571,052.33

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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.