Home / 28,714,709.32-39,626,766.06-15,661,964.92

Finding the Fourth Proportional to 28,714,709.32, 39,626,766.06 and 15,661,964.92

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Solution

The fourth proportional to 28,714,709.32, 39,626,766.06 and 15,661,964.92 is: 21,613,766.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,714,709.32 : 39,626,766.06 = 15,661,964.92 : x
  2. Step 2: Convert to fraction form
    28,714,709.32/39,626,766.06 = 15,661,964.92/x
  3. Step 3: Cross multiply
    28,714,709.32x = 39,626,766.06 × 15,661,964.92
  4. Step 4: Simplify right side
    28,714,709.32x = 620,633,019,924,766.62
  5. Step 5: Solve for x
    x = 620,633,019,924,766.62/28,714,709.32
  6. Step 6: Final answer
    x = 21,613,766.42

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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.