Home / 382,575,489.54-528,117,080.60-257,200,398.42

Finding the Fourth Proportional to 382,575,489.54, 528,117,080.60 and 257,200,398.42

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Solution

The fourth proportional to 382,575,489.54, 528,117,080.60 and 257,200,398.42 is: 355,046,068.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,575,489.54 : 528,117,080.60 = 257,200,398.42 : x
  2. Step 2: Convert to fraction form
    382,575,489.54/528,117,080.60 = 257,200,398.42/x
  3. Step 3: Cross multiply
    382,575,489.54x = 528,117,080.60 × 257,200,398.42
  4. Step 4: Simplify right side
    382,575,489.54x = 135,831,923,541,441,248
  5. Step 5: Solve for x
    x = 135,831,923,541,441,248/382,575,489.54
  6. Step 6: Final answer
    x = 355,046,068.70

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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.