Home / 990,452,862.60-1,482,152,100.30-862,466,123.40

Finding the Fourth Proportional to 990,452,862.60, 1,482,152,100.30 and 862,466,123.40

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Solution

The fourth proportional to 990,452,862.60, 1,482,152,100.30 and 862,466,123.40 is: 1,290,627,776.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,452,862.60 : 1,482,152,100.30 = 862,466,123.40 : x
  2. Step 2: Convert to fraction form
    990,452,862.60/1,482,152,100.30 = 862,466,123.40/x
  3. Step 3: Cross multiply
    990,452,862.60x = 1,482,152,100.30 × 862,466,123.40
  4. Step 4: Simplify right side
    990,452,862.60x = 1,278,305,976,234,908,928
  5. Step 5: Solve for x
    x = 1,278,305,976,234,908,928/990,452,862.60
  6. Step 6: Final answer
    x = 1,290,627,776.95

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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.