Home / 289,007,217.33-398,829,959.57-156,848,213.84

Finding the Fourth Proportional to 289,007,217.33, 398,829,959.57 and 156,848,213.84

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Solution

The fourth proportional to 289,007,217.33, 398,829,959.57 and 156,848,213.84 is: 216,450,534.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,007,217.33 : 398,829,959.57 = 156,848,213.84 : x
  2. Step 2: Convert to fraction form
    289,007,217.33/398,829,959.57 = 156,848,213.84/x
  3. Step 3: Cross multiply
    289,007,217.33x = 398,829,959.57 × 156,848,213.84
  4. Step 4: Simplify right side
    289,007,217.33x = 62,555,766,784,433,912
  5. Step 5: Solve for x
    x = 62,555,766,784,433,912/289,007,217.33
  6. Step 6: Final answer
    x = 216,450,534.91

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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.