Home / 323,677,965.70-485,516,948.55-286,264,519.30

Finding the Fourth Proportional to 323,677,965.70, 485,516,948.55 and 286,264,519.30

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Solution

The fourth proportional to 323,677,965.70, 485,516,948.55 and 286,264,519.30 is: 429,396,778.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,677,965.70 : 485,516,948.55 = 286,264,519.30 : x
  2. Step 2: Convert to fraction form
    323,677,965.70/485,516,948.55 = 286,264,519.30/x
  3. Step 3: Cross multiply
    323,677,965.70x = 485,516,948.55 × 286,264,519.30
  4. Step 4: Simplify right side
    323,677,965.70x = 138,986,275,888,668,592
  5. Step 5: Solve for x
    x = 138,986,275,888,668,592/323,677,965.70
  6. Step 6: Final answer
    x = 429,396,778.95

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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.