Home / 468,195,619.33-646,109,729.85-280,023,909.94

Finding the Fourth Proportional to 468,195,619.33, 646,109,729.85 and 280,023,909.94

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Solution

The fourth proportional to 468,195,619.33, 646,109,729.85 and 280,023,909.94 is: 386,432,861.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,195,619.33 : 646,109,729.85 = 280,023,909.94 : x
  2. Step 2: Convert to fraction form
    468,195,619.33/646,109,729.85 = 280,023,909.94/x
  3. Step 3: Cross multiply
    468,195,619.33x = 646,109,729.85 × 280,023,909.94
  4. Step 4: Simplify right side
    468,195,619.33x = 180,926,172,802,874,144
  5. Step 5: Solve for x
    x = 180,926,172,802,874,144/468,195,619.33
  6. Step 6: Final answer
    x = 386,432,861.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.