Home / 906,390,115.20-1,359,585,172.80-724,991,587.20

Finding the Fourth Proportional to 906,390,115.20, 1,359,585,172.80 and 724,991,587.20

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Solution

The fourth proportional to 906,390,115.20, 1,359,585,172.80 and 724,991,587.20 is: 1,087,487,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,390,115.20 : 1,359,585,172.80 = 724,991,587.20 : x
  2. Step 2: Convert to fraction form
    906,390,115.20/1,359,585,172.80 = 724,991,587.20/x
  3. Step 3: Cross multiply
    906,390,115.20x = 1,359,585,172.80 × 724,991,587.20
  4. Step 4: Simplify right side
    906,390,115.20x = 985,687,812,361,858,304
  5. Step 5: Solve for x
    x = 985,687,812,361,858,304/906,390,115.20
  6. Step 6: Final answer
    x = 1,087,487,380.80

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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.