Home / 13,109,013.22-18,091,515.34-7,229,797.36

Finding the Fourth Proportional to 13,109,013.22, 18,091,515.34 and 7,229,797.36

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Solution

The fourth proportional to 13,109,013.22, 18,091,515.34 and 7,229,797.36 is: 9,977,714.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,109,013.22 : 18,091,515.34 = 7,229,797.36 : x
  2. Step 2: Convert to fraction form
    13,109,013.22/18,091,515.34 = 7,229,797.36/x
  3. Step 3: Cross multiply
    13,109,013.22x = 18,091,515.34 × 7,229,797.36
  4. Step 4: Simplify right side
    13,109,013.22x = 130,797,989,807,339.95
  5. Step 5: Solve for x
    x = 130,797,989,807,339.95/13,109,013.22
  6. Step 6: Final answer
    x = 9,977,714.39

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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.