Home / 21,250,052.80-31,882,952.40-20,462,732.80

Finding the Fourth Proportional to 21,250,052.80, 31,882,952.40 and 20,462,732.80

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Solution

The fourth proportional to 21,250,052.80, 31,882,952.40 and 20,462,732.80 is: 30,701,680.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250,052.80 : 31,882,952.40 = 20,462,732.80 : x
  2. Step 2: Convert to fraction form
    21,250,052.80/31,882,952.40 = 20,462,732.80/x
  3. Step 3: Cross multiply
    21,250,052.80x = 31,882,952.40 × 20,462,732.80
  4. Step 4: Simplify right side
    21,250,052.80x = 652,412,335,836,318.75
  5. Step 5: Solve for x
    x = 652,412,335,836,318.75/21,250,052.80
  6. Step 6: Final answer
    x = 30,701,680.70

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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.