Home / 21,109,537.18-31,684,781.48-10,187,413.16

Finding the Fourth Proportional to 21,109,537.18, 31,684,781.48 and 10,187,413.16

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Solution

The fourth proportional to 21,109,537.18, 31,684,781.48 and 10,187,413.16 is: 15,291,001.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,109,537.18 : 31,684,781.48 = 10,187,413.16 : x
  2. Step 2: Convert to fraction form
    21,109,537.18/31,684,781.48 = 10,187,413.16/x
  3. Step 3: Cross multiply
    21,109,537.18x = 31,684,781.48 × 10,187,413.16
  4. Step 4: Simplify right side
    21,109,537.18x = 322,785,959,849,351.19
  5. Step 5: Solve for x
    x = 322,785,959,849,351.19/21,109,537.18
  6. Step 6: Final answer
    x = 15,291,001.27

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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.