Home / 13,320,324.30-18,382,047.30-7,208,752.80

Finding the Fourth Proportional to 13,320,324.30, 18,382,047.30 and 7,208,752.80

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Solution

The fourth proportional to 13,320,324.30, 18,382,047.30 and 7,208,752.80 is: 9,948,078.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320,324.30 : 18,382,047.30 = 7,208,752.80 : x
  2. Step 2: Convert to fraction form
    13,320,324.30/18,382,047.30 = 7,208,752.80/x
  3. Step 3: Cross multiply
    13,320,324.30x = 18,382,047.30 × 7,208,752.80
  4. Step 4: Simplify right side
    13,320,324.30x = 132,511,634,943,607.44
  5. Step 5: Solve for x
    x = 132,511,634,943,607.44/13,320,324.30
  6. Step 6: Final answer
    x = 9,948,078.74

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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.