Home / 13,109,023.89-18,091,530.38-7,229,808.25

Finding the Fourth Proportional to 13,109,023.89, 18,091,530.38 and 7,229,808.25

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Solution

The fourth proportional to 13,109,023.89, 18,091,530.38 and 7,229,808.25 is: 9,977,729.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,109,023.89 : 18,091,530.38 = 7,229,808.25 : x
  2. Step 2: Convert to fraction form
    13,109,023.89/18,091,530.38 = 7,229,808.25/x
  3. Step 3: Cross multiply
    13,109,023.89x = 18,091,530.38 × 7,229,808.25
  4. Step 4: Simplify right side
    13,109,023.89x = 130,798,295,506,983.14
  5. Step 5: Solve for x
    x = 130,798,295,506,983.14/13,109,023.89
  6. Step 6: Final answer
    x = 9,977,729.58

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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.