Home / 638,578,082.80-957,867,124.20-485,523,074.80

Finding the Fourth Proportional to 638,578,082.80, 957,867,124.20 and 485,523,074.80

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Solution

The fourth proportional to 638,578,082.80, 957,867,124.20 and 485,523,074.80 is: 728,284,612.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,578,082.80 : 957,867,124.20 = 485,523,074.80 : x
  2. Step 2: Convert to fraction form
    638,578,082.80/957,867,124.20 = 485,523,074.80/x
  3. Step 3: Cross multiply
    638,578,082.80x = 957,867,124.20 × 485,523,074.80
  4. Step 4: Simplify right side
    638,578,082.80x = 465,066,591,391,417,536
  5. Step 5: Solve for x
    x = 465,066,591,391,417,536/638,578,082.80
  6. Step 6: Final answer
    x = 728,284,612.20

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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.