Home / 8,422,820.22-11,612,959.53-7,029,386.08

Finding the Fourth Proportional to 8,422,820.22, 11,612,959.53 and 7,029,386.08

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Solution

The fourth proportional to 8,422,820.22, 11,612,959.53 and 7,029,386.08 is: 9,691,762.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422,820.22 : 11,612,959.53 = 7,029,386.08 : x
  2. Step 2: Convert to fraction form
    8,422,820.22/11,612,959.53 = 7,029,386.08/x
  3. Step 3: Cross multiply
    8,422,820.22x = 11,612,959.53 × 7,029,386.08
  4. Step 4: Simplify right side
    8,422,820.22x = 81,631,976,067,785.34
  5. Step 5: Solve for x
    x = 81,631,976,067,785.34/8,422,820.22
  6. Step 6: Final answer
    x = 9,691,762.85

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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.