Home / 31,986,192.40-47,884,810.20-21,215,654.80

Finding the Fourth Proportional to 31,986,192.40, 47,884,810.20 and 21,215,654.80

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Solution

The fourth proportional to 31,986,192.40, 47,884,810.20 and 21,215,654.80 is: 31,760,817.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,986,192.40 : 47,884,810.20 = 21,215,654.80 : x
  2. Step 2: Convert to fraction form
    31,986,192.40/47,884,810.20 = 21,215,654.80/x
  3. Step 3: Cross multiply
    31,986,192.40x = 47,884,810.20 × 21,215,654.80
  4. Step 4: Simplify right side
    31,986,192.40x = 1,015,907,603,366,719
  5. Step 5: Solve for x
    x = 1,015,907,603,366,719/31,986,192.40
  6. Step 6: Final answer
    x = 31,760,817.00

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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.