Home / 21,948,904.80-30,291,349.41-12,162,418.92

Finding the Fourth Proportional to 21,948,904.80, 30,291,349.41 and 12,162,418.92

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Solution

The fourth proportional to 21,948,904.80, 30,291,349.41 and 12,162,418.92 is: 16,785,169.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,948,904.80 : 30,291,349.41 = 12,162,418.92 : x
  2. Step 2: Convert to fraction form
    21,948,904.80/30,291,349.41 = 12,162,418.92/x
  3. Step 3: Cross multiply
    21,948,904.80x = 30,291,349.41 × 12,162,418.92
  4. Step 4: Simplify right side
    21,948,904.80x = 368,416,081,176,514.81
  5. Step 5: Solve for x
    x = 368,416,081,176,514.81/21,948,904.80
  6. Step 6: Final answer
    x = 16,785,169.22

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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.