Home / 21,748,046.90-30,012,413.10-11,959,122.38

Finding the Fourth Proportional to 21,748,046.90, 30,012,413.10 and 11,959,122.38

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Solution

The fourth proportional to 21,748,046.90, 30,012,413.10 and 11,959,122.38 is: 16,503,648.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,748,046.90 : 30,012,413.10 = 11,959,122.38 : x
  2. Step 2: Convert to fraction form
    21,748,046.90/30,012,413.10 = 11,959,122.38/x
  3. Step 3: Cross multiply
    21,748,046.90x = 30,012,413.10 × 11,959,122.38
  4. Step 4: Simplify right side
    21,748,046.90x = 358,922,121,182,015.25
  5. Step 5: Solve for x
    x = 358,922,121,182,015.25/21,748,046.90
  6. Step 6: Final answer
    x = 16,503,648.48

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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.