Home / 13,508,984.79-18,642,406.77-7,314,032.70

Finding the Fourth Proportional to 13,508,984.79, 18,642,406.77 and 7,314,032.70

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Solution

The fourth proportional to 13,508,984.79, 18,642,406.77 and 7,314,032.70 is: 10,093,369.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508,984.79 : 18,642,406.77 = 7,314,032.70 : x
  2. Step 2: Convert to fraction form
    13,508,984.79/18,642,406.77 = 7,314,032.70/x
  3. Step 3: Cross multiply
    13,508,984.79x = 18,642,406.77 × 7,314,032.70
  4. Step 4: Simplify right side
    13,508,984.79x = 136,351,172,722,481.38
  5. Step 5: Solve for x
    x = 136,351,172,722,481.38/13,508,984.79
  6. Step 6: Final answer
    x = 10,093,369.33

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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.