Home / 13,122,248.12-18,109,227.32-7,321,536.80

Finding the Fourth Proportional to 13,122,248.12, 18,109,227.32 and 7,321,536.80

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Solution

The fourth proportional to 13,122,248.12, 18,109,227.32 and 7,321,536.80 is: 10,104,013.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122,248.12 : 18,109,227.32 = 7,321,536.80 : x
  2. Step 2: Convert to fraction form
    13,122,248.12/18,109,227.32 = 7,321,536.80/x
  3. Step 3: Cross multiply
    13,122,248.12x = 18,109,227.32 × 7,321,536.80
  4. Step 4: Simplify right side
    13,122,248.12x = 132,587,374,242,945.38
  5. Step 5: Solve for x
    x = 132,587,374,242,945.38/13,122,248.12
  6. Step 6: Final answer
    x = 10,104,013.66

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1.5x scale

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.