Home / 13,121,227.95-18,107,302.28-7,320,009.69

Finding the Fourth Proportional to 13,121,227.95, 18,107,302.28 and 7,320,009.69

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Solution

The fourth proportional to 13,121,227.95, 18,107,302.28 and 7,320,009.69 is: 10,101,617.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,121,227.95 : 18,107,302.28 = 7,320,009.69 : x
  2. Step 2: Convert to fraction form
    13,121,227.95/18,107,302.28 = 7,320,009.69/x
  3. Step 3: Cross multiply
    13,121,227.95x = 18,107,302.28 × 7,320,009.69
  4. Step 4: Simplify right side
    13,121,227.95x = 132,545,628,112,759.05
  5. Step 5: Solve for x
    x = 132,545,628,112,759.05/13,121,227.95
  6. Step 6: Final answer
    x = 10,101,617.67

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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.