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Finding the Fourth Proportional to 843,892,338.88, 1,265,789,480.64 and 253,669,833.28

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Solution

The fourth proportional to 843,892,338.88, 1,265,789,480.64 and 253,669,833.28 is: 380,490,012.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,892,338.88 : 1,265,789,480.64 = 253,669,833.28 : x
  2. Step 2: Convert to fraction form
    843,892,338.88/1,265,789,480.64 = 253,669,833.28/x
  3. Step 3: Cross multiply
    843,892,338.88x = 1,265,789,480.64 × 253,669,833.28
  4. Step 4: Simplify right side
    843,892,338.88x = 321,092,606,521,526,592
  5. Step 5: Solve for x
    x = 321,092,606,521,526,592/843,892,338.88
  6. Step 6: Final answer
    x = 380,490,012.44

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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.