Home / 21,332,438.40-32,073,307.20-20,884,540.80

Finding the Fourth Proportional to 21,332,438.40, 32,073,307.20 and 20,884,540.80

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Solution

The fourth proportional to 21,332,438.40, 32,073,307.20 and 20,884,540.80 is: 31,399,893.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,332,438.40 : 32,073,307.20 = 20,884,540.80 : x
  2. Step 2: Convert to fraction form
    21,332,438.40/32,073,307.20 = 20,884,540.80/x
  3. Step 3: Cross multiply
    21,332,438.40x = 32,073,307.20 × 20,884,540.80
  4. Step 4: Simplify right side
    21,332,438.40x = 669,836,292,809,333.75
  5. Step 5: Solve for x
    x = 669,836,292,809,333.75/21,332,438.40
  6. Step 6: Final answer
    x = 31,399,893.45

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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.