Home / 309,215,400-462,813,668.28-227,312,599.92

Finding the Fourth Proportional to 309,215,400, 462,813,668.28 and 227,312,599.92

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Solution

The fourth proportional to 309,215,400, 462,813,668.28 and 227,312,599.92 is: 340,226,839.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,215,400 : 462,813,668.28 = 227,312,599.92 : x
  2. Step 2: Convert to fraction form
    309,215,400/462,813,668.28 = 227,312,599.92/x
  3. Step 3: Cross multiply
    309,215,400x = 462,813,668.28 × 227,312,599.92
  4. Step 4: Simplify right side
    309,215,400x = 105,203,378,215,239,216
  5. Step 5: Solve for x
    x = 105,203,378,215,239,216/309,215,400
  6. Step 6: Final answer
    x = 340,226,839.33

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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.