Home / 20,146,800-27,799,779.78-11,325,004.20

Finding the Fourth Proportional to 20,146,800, 27,799,779.78 and 11,325,004.20

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Solution

The fourth proportional to 20,146,800, 27,799,779.78 and 11,325,004.20 is: 15,626,929.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146,800 : 27,799,779.78 = 11,325,004.20 : x
  2. Step 2: Convert to fraction form
    20,146,800/27,799,779.78 = 11,325,004.20/x
  3. Step 3: Cross multiply
    20,146,800x = 27,799,779.78 × 11,325,004.20
  4. Step 4: Simplify right side
    20,146,800x = 314,832,622,767,575.06
  5. Step 5: Solve for x
    x = 314,832,622,767,575.06/20,146,800
  6. Step 6: Final answer
    x = 15,626,929.48

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1.5x scale

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.