Home / 399,210,145.31-550,909,968.23-222,998,138.44

Finding the Fourth Proportional to 399,210,145.31, 550,909,968.23 and 222,998,138.44

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Solution

The fourth proportional to 399,210,145.31, 550,909,968.23 and 222,998,138.44 is: 307,737,413.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,210,145.31 : 550,909,968.23 = 222,998,138.44 : x
  2. Step 2: Convert to fraction form
    399,210,145.31/550,909,968.23 = 222,998,138.44/x
  3. Step 3: Cross multiply
    399,210,145.31x = 550,909,968.23 × 222,998,138.44
  4. Step 4: Simplify right side
    399,210,145.31x = 122,851,897,363,329,552
  5. Step 5: Solve for x
    x = 122,851,897,363,329,552/399,210,145.31
  6. Step 6: Final answer
    x = 307,737,413.01

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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.