Home / 13,122,013.61-18,108,390.11-7,320,796.53

Finding the Fourth Proportional to 13,122,013.61, 18,108,390.11 and 7,320,796.53

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Solution

The fourth proportional to 13,122,013.61, 18,108,390.11 and 7,320,796.53 is: 10,102,705.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122,013.61 : 18,108,390.11 = 7,320,796.53 : x
  2. Step 2: Convert to fraction form
    13,122,013.61/18,108,390.11 = 7,320,796.53/x
  3. Step 3: Cross multiply
    13,122,013.61x = 18,108,390.11 × 7,320,796.53
  4. Step 4: Simplify right side
    13,122,013.61x = 132,567,839,444,570.34
  5. Step 5: Solve for x
    x = 132,567,839,444,570.34/13,122,013.61
  6. Step 6: Final answer
    x = 10,102,705.53

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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.