Home / 254,985,420.70-382,478,131.05-82,479,672.10

Finding the Fourth Proportional to 254,985,420.70, 382,478,131.05 and 82,479,672.10

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Solution

The fourth proportional to 254,985,420.70, 382,478,131.05 and 82,479,672.10 is: 123,719,508.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,985,420.70 : 382,478,131.05 = 82,479,672.10 : x
  2. Step 2: Convert to fraction form
    254,985,420.70/382,478,131.05 = 82,479,672.10/x
  3. Step 3: Cross multiply
    254,985,420.70x = 382,478,131.05 × 82,479,672.10
  4. Step 4: Simplify right side
    254,985,420.70x = 31,546,670,834,424,828
  5. Step 5: Solve for x
    x = 31,546,670,834,424,828/254,985,420.70
  6. Step 6: Final answer
    x = 123,719,508.15

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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.