Home / 814,506,807.60-1,221,760,211.40-296,954,132.40

Finding the Fourth Proportional to 814,506,807.60, 1,221,760,211.40 and 296,954,132.40

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Solution

The fourth proportional to 814,506,807.60, 1,221,760,211.40 and 296,954,132.40 is: 445,431,198.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,506,807.60 : 1,221,760,211.40 = 296,954,132.40 : x
  2. Step 2: Convert to fraction form
    814,506,807.60/1,221,760,211.40 = 296,954,132.40/x
  3. Step 3: Cross multiply
    814,506,807.60x = 1,221,760,211.40 × 296,954,132.40
  4. Step 4: Simplify right side
    814,506,807.60x = 362,806,743,577,127,616
  5. Step 5: Solve for x
    x = 362,806,743,577,127,616/814,506,807.60
  6. Step 6: Final answer
    x = 445,431,198.60

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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.