Home / 10,929,945.20-15,084,603.68-9,091,159.34

Finding the Fourth Proportional to 10,929,945.20, 15,084,603.68 and 9,091,159.34

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Solution

The fourth proportional to 10,929,945.20, 15,084,603.68 and 9,091,159.34 is: 12,546,863.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,929,945.20 : 15,084,603.68 = 9,091,159.34 : x
  2. Step 2: Convert to fraction form
    10,929,945.20/15,084,603.68 = 9,091,159.34/x
  3. Step 3: Cross multiply
    10,929,945.20x = 15,084,603.68 × 9,091,159.34
  4. Step 4: Simplify right side
    10,929,945.20x = 137,136,535,514,751.58
  5. Step 5: Solve for x
    x = 137,136,535,514,751.58/10,929,945.20
  6. Step 6: Final answer
    x = 12,546,863.97

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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.