Home / 990,452,489.10-1,482,151,540.05-862,465,749.90

Finding the Fourth Proportional to 990,452,489.10, 1,482,151,540.05 and 862,465,749.90

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Solution

The fourth proportional to 990,452,489.10, 1,482,151,540.05 and 862,465,749.90 is: 1,290,627,216.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,452,489.10 : 1,482,151,540.05 = 862,465,749.90 : x
  2. Step 2: Convert to fraction form
    990,452,489.10/1,482,151,540.05 = 862,465,749.90/x
  3. Step 3: Cross multiply
    990,452,489.10x = 1,482,151,540.05 × 862,465,749.90
  4. Step 4: Simplify right side
    990,452,489.10x = 1,278,304,939,454,663,168
  5. Step 5: Solve for x
    x = 1,278,304,939,454,663,168/990,452,489.10
  6. Step 6: Final answer
    x = 1,290,627,216.88

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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.