Home / 852,144,613.40-1,278,216,920.10-306,815,288.60

Finding the Fourth Proportional to 852,144,613.40, 1,278,216,920.10 and 306,815,288.60

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Solution

The fourth proportional to 852,144,613.40, 1,278,216,920.10 and 306,815,288.60 is: 460,222,932.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,144,613.40 : 1,278,216,920.10 = 306,815,288.60 : x
  2. Step 2: Convert to fraction form
    852,144,613.40/1,278,216,920.10 = 306,815,288.60/x
  3. Step 3: Cross multiply
    852,144,613.40x = 1,278,216,920.10 × 306,815,288.60
  4. Step 4: Simplify right side
    852,144,613.40x = 392,176,493,233,884,672
  5. Step 5: Solve for x
    x = 392,176,493,233,884,672/852,144,613.40
  6. Step 6: Final answer
    x = 460,222,932.90

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Double scale
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Similar ratio
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1.5x scale

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.