Home / 438,700,208.16-658,869,891.84-386,196,494.52

Finding the Fourth Proportional to 438,700,208.16, 658,869,891.84 and 386,196,494.52

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Solution

The fourth proportional to 438,700,208.16, 658,869,891.84 and 386,196,494.52 is: 580,016,233.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,700,208.16 : 658,869,891.84 = 386,196,494.52 : x
  2. Step 2: Convert to fraction form
    438,700,208.16/658,869,891.84 = 386,196,494.52/x
  3. Step 3: Cross multiply
    438,700,208.16x = 658,869,891.84 × 386,196,494.52
  4. Step 4: Simplify right side
    438,700,208.16x = 254,453,242,573,379,552
  5. Step 5: Solve for x
    x = 254,453,242,573,379,552/438,700,208.16
  6. Step 6: Final answer
    x = 580,016,233.96

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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.