Home / 12,669,156.72-17,479,325.88-7,161,999.12

Finding the Fourth Proportional to 12,669,156.72, 17,479,325.88 and 7,161,999.12

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Solution

The fourth proportional to 12,669,156.72, 17,479,325.88 and 7,161,999.12 is: 9,881,235.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,669,156.72 : 17,479,325.88 = 7,161,999.12 : x
  2. Step 2: Convert to fraction form
    12,669,156.72/17,479,325.88 = 7,161,999.12/x
  3. Step 3: Cross multiply
    12,669,156.72x = 17,479,325.88 × 7,161,999.12
  4. Step 4: Simplify right side
    12,669,156.72x = 125,186,916,570,753.22
  5. Step 5: Solve for x
    x = 125,186,916,570,753.22/12,669,156.72
  6. Step 6: Final answer
    x = 9,881,235.14

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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.