Home / 13,338,749.76-18,407,486.80-7,227,178.26

Finding the Fourth Proportional to 13,338,749.76, 18,407,486.80 and 7,227,178.26

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Solution

The fourth proportional to 13,338,749.76, 18,407,486.80 and 7,227,178.26 is: 9,973,512.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338,749.76 : 18,407,486.80 = 7,227,178.26 : x
  2. Step 2: Convert to fraction form
    13,338,749.76/18,407,486.80 = 7,227,178.26/x
  3. Step 3: Cross multiply
    13,338,749.76x = 18,407,486.80 × 7,227,178.26
  4. Step 4: Simplify right side
    13,338,749.76x = 133,034,188,422,196.97
  5. Step 5: Solve for x
    x = 133,034,188,422,196.97/13,338,749.76
  6. Step 6: Final answer
    x = 9,973,512.57

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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.