Home / 724,990,508.80-1,087,485,763.20-449,491,494.40

Finding the Fourth Proportional to 724,990,508.80, 1,087,485,763.20 and 449,491,494.40

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Solution

The fourth proportional to 724,990,508.80, 1,087,485,763.20 and 449,491,494.40 is: 674,237,241.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,990,508.80 : 1,087,485,763.20 = 449,491,494.40 : x
  2. Step 2: Convert to fraction form
    724,990,508.80/1,087,485,763.20 = 449,491,494.40/x
  3. Step 3: Cross multiply
    724,990,508.80x = 1,087,485,763.20 × 449,491,494.40
  4. Step 4: Simplify right side
    724,990,508.80x = 488,815,600,839,492,544
  5. Step 5: Solve for x
    x = 488,815,600,839,492,544/724,990,508.80
  6. Step 6: Final answer
    x = 674,237,241.60

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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.