Home / 15,051,201.78-20,770,642.65-8,175,689.22

Finding the Fourth Proportional to 15,051,201.78, 20,770,642.65 and 8,175,689.22

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Solution

The fourth proportional to 15,051,201.78, 20,770,642.65 and 8,175,689.22 is: 11,282,442.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,051,201.78 : 20,770,642.65 = 8,175,689.22 : x
  2. Step 2: Convert to fraction form
    15,051,201.78/20,770,642.65 = 8,175,689.22/x
  3. Step 3: Cross multiply
    15,051,201.78x = 20,770,642.65 × 8,175,689.22
  4. Step 4: Simplify right side
    15,051,201.78x = 169,814,319,206,077.22
  5. Step 5: Solve for x
    x = 169,814,319,206,077.22/15,051,201.78
  6. Step 6: Final answer
    x = 11,282,442.54

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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.