Home / 31,986,186.40-47,884,801.20-21,215,648.80

Finding the Fourth Proportional to 31,986,186.40, 47,884,801.20 and 21,215,648.80

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Solution

The fourth proportional to 31,986,186.40, 47,884,801.20 and 21,215,648.80 is: 31,760,808.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,986,186.40 : 47,884,801.20 = 21,215,648.80 : x
  2. Step 2: Convert to fraction form
    31,986,186.40/47,884,801.20 = 21,215,648.80/x
  3. Step 3: Cross multiply
    31,986,186.40x = 47,884,801.20 × 21,215,648.80
  4. Step 4: Simplify right side
    31,986,186.40x = 1,015,907,125,117,018.62
  5. Step 5: Solve for x
    x = 1,015,907,125,117,018.62/31,986,186.40
  6. Step 6: Final answer
    x = 31,760,808.01

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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.