Home / 815,257,284.90-1,221,451,036.65-700,466,028.90

Finding the Fourth Proportional to 815,257,284.90, 1,221,451,036.65 and 700,466,028.90

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Solution

The fourth proportional to 815,257,284.90, 1,221,451,036.65 and 700,466,028.90 is: 1,049,466,190.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,257,284.90 : 1,221,451,036.65 = 700,466,028.90 : x
  2. Step 2: Convert to fraction form
    815,257,284.90/1,221,451,036.65 = 700,466,028.90/x
  3. Step 3: Cross multiply
    815,257,284.90x = 1,221,451,036.65 × 700,466,028.90
  4. Step 4: Simplify right side
    815,257,284.90x = 855,584,957,138,013,952
  5. Step 5: Solve for x
    x = 855,584,957,138,013,952/815,257,284.90
  6. Step 6: Final answer
    x = 1,049,466,190.59

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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.