Home / 254,985,397.20-382,478,095.80-82,479,648.60

Finding the Fourth Proportional to 254,985,397.20, 382,478,095.80 and 82,479,648.60

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Solution

The fourth proportional to 254,985,397.20, 382,478,095.80 and 82,479,648.60 is: 123,719,472.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,985,397.20 : 382,478,095.80 = 82,479,648.60 : x
  2. Step 2: Convert to fraction form
    254,985,397.20/382,478,095.80 = 82,479,648.60/x
  3. Step 3: Cross multiply
    254,985,397.20x = 382,478,095.80 × 82,479,648.60
  4. Step 4: Simplify right side
    254,985,397.20x = 31,546,658,938,781,136
  5. Step 5: Solve for x
    x = 31,546,658,938,781,136/254,985,397.20
  6. Step 6: Final answer
    x = 123,719,472.90

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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.