Home / 438,866,468.80-658,299,703.20-398,689,529.20

Finding the Fourth Proportional to 438,866,468.80, 658,299,703.20 and 398,689,529.20

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Solution

The fourth proportional to 438,866,468.80, 658,299,703.20 and 398,689,529.20 is: 598,034,293.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,866,468.80 : 658,299,703.20 = 398,689,529.20 : x
  2. Step 2: Convert to fraction form
    438,866,468.80/658,299,703.20 = 398,689,529.20/x
  3. Step 3: Cross multiply
    438,866,468.80x = 658,299,703.20 × 398,689,529.20
  4. Step 4: Simplify right side
    438,866,468.80x = 262,457,198,741,307,744
  5. Step 5: Solve for x
    x = 262,457,198,741,307,744/438,866,468.80
  6. Step 6: Final answer
    x = 598,034,293.80

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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.