Home / 25,348,043.40-38,022,065.10-21,149,003.40

Finding the Fourth Proportional to 25,348,043.40, 38,022,065.10 and 21,149,003.40

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Solution

The fourth proportional to 25,348,043.40, 38,022,065.10 and 21,149,003.40 is: 31,723,505.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,348,043.40 : 38,022,065.10 = 21,149,003.40 : x
  2. Step 2: Convert to fraction form
    25,348,043.40/38,022,065.10 = 21,149,003.40/x
  3. Step 3: Cross multiply
    25,348,043.40x = 38,022,065.10 × 21,149,003.40
  4. Step 4: Simplify right side
    25,348,043.40x = 804,128,784,074,921.38
  5. Step 5: Solve for x
    x = 804,128,784,074,921.38/25,348,043.40
  6. Step 6: Final answer
    x = 31,723,505.10

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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.