Home / 819,397,200.60-1,229,095,800.90-724,694,414.40

Finding the Fourth Proportional to 819,397,200.60, 1,229,095,800.90 and 724,694,414.40

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Solution

The fourth proportional to 819,397,200.60, 1,229,095,800.90 and 724,694,414.40 is: 1,087,041,621.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,397,200.60 : 1,229,095,800.90 = 724,694,414.40 : x
  2. Step 2: Convert to fraction form
    819,397,200.60/1,229,095,800.90 = 724,694,414.40/x
  3. Step 3: Cross multiply
    819,397,200.60x = 1,229,095,800.90 × 724,694,414.40
  4. Step 4: Simplify right side
    819,397,200.60x = 890,718,861,674,724,480
  5. Step 5: Solve for x
    x = 890,718,861,674,724,480/819,397,200.60
  6. Step 6: Final answer
    x = 1,087,041,621.60

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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.