Home / 820,211,248.64-1,131,894,974.28-443,867,854.64

Finding the Fourth Proportional to 820,211,248.64, 1,131,894,974.28 and 443,867,854.64

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Solution

The fourth proportional to 820,211,248.64, 1,131,894,974.28 and 443,867,854.64 is: 612,539,507.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,211,248.64 : 1,131,894,974.28 = 443,867,854.64 : x
  2. Step 2: Convert to fraction form
    820,211,248.64/1,131,894,974.28 = 443,867,854.64/x
  3. Step 3: Cross multiply
    820,211,248.64x = 1,131,894,974.28 × 443,867,854.64
  4. Step 4: Simplify right side
    820,211,248.64x = 502,411,793,911,461,568
  5. Step 5: Solve for x
    x = 502,411,793,911,461,568/820,211,248.64
  6. Step 6: Final answer
    x = 612,539,507.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.