Home / 20,926,337.68-31,395,509.76-8,789,559.28

Finding the Fourth Proportional to 20,926,337.68, 31,395,509.76 and 8,789,559.28

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Solution

The fourth proportional to 20,926,337.68, 31,395,509.76 and 8,789,559.28 is: 13,186,860.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,926,337.68 : 31,395,509.76 = 8,789,559.28 : x
  2. Step 2: Convert to fraction form
    20,926,337.68/31,395,509.76 = 8,789,559.28/x
  3. Step 3: Cross multiply
    20,926,337.68x = 31,395,509.76 × 8,789,559.28
  4. Step 4: Simplify right side
    20,926,337.68x = 275,952,694,161,338.56
  5. Step 5: Solve for x
    x = 275,952,694,161,338.56/20,926,337.68
  6. Step 6: Final answer
    x = 13,186,860.42

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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.