Home / 13,109,014.22-18,091,516.72-7,229,798.36

Finding the Fourth Proportional to 13,109,014.22, 18,091,516.72 and 7,229,798.36

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Solution

The fourth proportional to 13,109,014.22, 18,091,516.72 and 7,229,798.36 is: 9,977,715.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,109,014.22 : 18,091,516.72 = 7,229,798.36 : x
  2. Step 2: Convert to fraction form
    13,109,014.22/18,091,516.72 = 7,229,798.36/x
  3. Step 3: Cross multiply
    13,109,014.22x = 18,091,516.72 × 7,229,798.36
  4. Step 4: Simplify right side
    13,109,014.22x = 130,798,017,912,168.58
  5. Step 5: Solve for x
    x = 130,798,017,912,168.58/13,109,014.22
  6. Step 6: Final answer
    x = 9,977,715.77

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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.