Home / 13,122,121.74-18,108,539.22-7,320,904.38

Finding the Fourth Proportional to 13,122,121.74, 18,108,539.22 and 7,320,904.38

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Solution

The fourth proportional to 13,122,121.74, 18,108,539.22 and 7,320,904.38 is: 10,102,854.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122,121.74 : 18,108,539.22 = 7,320,904.38 : x
  2. Step 2: Convert to fraction form
    13,122,121.74/18,108,539.22 = 7,320,904.38/x
  3. Step 3: Cross multiply
    13,122,121.74x = 18,108,539.22 × 7,320,904.38
  4. Step 4: Simplify right side
    13,122,121.74x = 132,570,884,091,099.77
  5. Step 5: Solve for x
    x = 132,570,884,091,099.77/13,122,121.74
  6. Step 6: Final answer
    x = 10,102,854.30

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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.