Home / 15,879,781.63-21,914,109.45-8,909,496.96

Finding the Fourth Proportional to 15,879,781.63, 21,914,109.45 and 8,909,496.96

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Solution

The fourth proportional to 15,879,781.63, 21,914,109.45 and 8,909,496.96 is: 12,295,111.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,879,781.63 : 21,914,109.45 = 8,909,496.96 : x
  2. Step 2: Convert to fraction form
    15,879,781.63/21,914,109.45 = 8,909,496.96/x
  3. Step 3: Cross multiply
    15,879,781.63x = 21,914,109.45 × 8,909,496.96
  4. Step 4: Simplify right side
    15,879,781.63x = 195,243,691,616,077.91
  5. Step 5: Solve for x
    x = 195,243,691,616,077.91/15,879,781.63
  6. Step 6: Final answer
    x = 12,295,111.87

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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.