Home / 438,866,490.30-658,299,735.45-398,689,550.70

Finding the Fourth Proportional to 438,866,490.30, 658,299,735.45 and 398,689,550.70

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Solution

The fourth proportional to 438,866,490.30, 658,299,735.45 and 398,689,550.70 is: 598,034,326.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,866,490.30 : 658,299,735.45 = 398,689,550.70 : x
  2. Step 2: Convert to fraction form
    438,866,490.30/658,299,735.45 = 398,689,550.70/x
  3. Step 3: Cross multiply
    438,866,490.30x = 658,299,735.45 × 398,689,550.70
  4. Step 4: Simplify right side
    438,866,490.30x = 262,457,225,752,489,376
  5. Step 5: Solve for x
    x = 262,457,225,752,489,376/438,866,490.30
  6. Step 6: Final answer
    x = 598,034,326.05

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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.