Home / 21,062,357.20-31,584,204.60-9,706,286.80

Finding the Fourth Proportional to 21,062,357.20, 31,584,204.60 and 9,706,286.80

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Solution

The fourth proportional to 21,062,357.20, 31,584,204.60 and 9,706,286.80 is: 14,555,130.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062,357.20 : 31,584,204.60 = 9,706,286.80 : x
  2. Step 2: Convert to fraction form
    21,062,357.20/31,584,204.60 = 9,706,286.80/x
  3. Step 3: Cross multiply
    21,062,357.20x = 31,584,204.60 × 9,706,286.80
  4. Step 4: Simplify right side
    21,062,357.20x = 306,565,348,197,479.31
  5. Step 5: Solve for x
    x = 306,565,348,197,479.31/21,062,357.20
  6. Step 6: Final answer
    x = 14,555,130.05

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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.