Home / 13,508,985.79-18,642,408.15-7,314,033.70

Finding the Fourth Proportional to 13,508,985.79, 18,642,408.15 and 7,314,033.70

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Solution

The fourth proportional to 13,508,985.79, 18,642,408.15 and 7,314,033.70 is: 10,093,370.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508,985.79 : 18,642,408.15 = 7,314,033.70 : x
  2. Step 2: Convert to fraction form
    13,508,985.79/18,642,408.15 = 7,314,033.70/x
  3. Step 3: Cross multiply
    13,508,985.79x = 18,642,408.15 × 7,314,033.70
  4. Step 4: Simplify right side
    13,508,985.79x = 136,351,201,458,254.64
  5. Step 5: Solve for x
    x = 136,351,201,458,254.64/13,508,985.79
  6. Step 6: Final answer
    x = 10,093,370.71

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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.