Home / 399,210,143.31-550,909,965.47-222,998,136.44

Finding the Fourth Proportional to 399,210,143.31, 550,909,965.47 and 222,998,136.44

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Solution

The fourth proportional to 399,210,143.31, 550,909,965.47 and 222,998,136.44 is: 307,737,410.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,210,143.31 : 550,909,965.47 = 222,998,136.44 : x
  2. Step 2: Convert to fraction form
    399,210,143.31/550,909,965.47 = 222,998,136.44/x
  3. Step 3: Cross multiply
    399,210,143.31x = 550,909,965.47 × 222,998,136.44
  4. Step 4: Simplify right side
    399,210,143.31x = 122,851,895,642,165,216
  5. Step 5: Solve for x
    x = 122,851,895,642,165,216/399,210,143.31
  6. Step 6: Final answer
    x = 307,737,410.24

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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.