Home / 382,575,489.98-528,117,081.20-257,200,398.86

Finding the Fourth Proportional to 382,575,489.98, 528,117,081.20 and 257,200,398.86

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Solution

The fourth proportional to 382,575,489.98, 528,117,081.20 and 257,200,398.86 is: 355,046,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,575,489.98 : 528,117,081.20 = 257,200,398.86 : x
  2. Step 2: Convert to fraction form
    382,575,489.98/528,117,081.20 = 257,200,398.86/x
  3. Step 3: Cross multiply
    382,575,489.98x = 528,117,081.20 × 257,200,398.86
  4. Step 4: Simplify right side
    382,575,489.98x = 135,831,923,929,419,008
  5. Step 5: Solve for x
    x = 135,831,923,929,419,008/382,575,489.98
  6. Step 6: Final answer
    x = 355,046,069.30

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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.