Home / 28,542,493.04-39,388,928.80-15,489,864.72

Finding the Fourth Proportional to 28,542,493.04, 39,388,928.80 and 15,489,864.72

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Solution

The fourth proportional to 28,542,493.04, 39,388,928.80 and 15,489,864.72 is: 21,376,169.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,542,493.04 : 39,388,928.80 = 15,489,864.72 : x
  2. Step 2: Convert to fraction form
    28,542,493.04/39,388,928.80 = 15,489,864.72/x
  3. Step 3: Cross multiply
    28,542,493.04x = 39,388,928.80 × 15,489,864.72
  4. Step 4: Simplify right side
    28,542,493.04x = 610,129,178,577,711.88
  5. Step 5: Solve for x
    x = 610,129,178,577,711.88/28,542,493.04
  6. Step 6: Final answer
    x = 21,376,169.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.