Home / 21,481,858.80-32,240,413.80-21,313,897.20

Finding the Fourth Proportional to 21,481,858.80, 32,240,413.80 and 21,313,897.20

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Solution

The fourth proportional to 21,481,858.80, 32,240,413.80 and 21,313,897.20 is: 31,988,333.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,481,858.80 : 32,240,413.80 = 21,313,897.20 : x
  2. Step 2: Convert to fraction form
    21,481,858.80/32,240,413.80 = 21,313,897.20/x
  3. Step 3: Cross multiply
    21,481,858.80x = 32,240,413.80 × 21,313,897.20
  4. Step 4: Simplify right side
    21,481,858.80x = 687,168,865,418,661.38
  5. Step 5: Solve for x
    x = 687,168,865,418,661.38/21,481,858.80
  6. Step 6: Final answer
    x = 31,988,333.59

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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.