Home / 13,519,470.08-18,657,302.40-7,408,286.72

Finding the Fourth Proportional to 13,519,470.08, 18,657,302.40 and 7,408,286.72

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Solution

The fourth proportional to 13,519,470.08, 18,657,302.40 and 7,408,286.72 is: 10,223,673.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519,470.08 : 18,657,302.40 = 7,408,286.72 : x
  2. Step 2: Convert to fraction form
    13,519,470.08/18,657,302.40 = 7,408,286.72/x
  3. Step 3: Cross multiply
    13,519,470.08x = 18,657,302.40 × 7,408,286.72
  4. Step 4: Simplify right side
    13,519,470.08x = 138,218,645,600,944.11
  5. Step 5: Solve for x
    x = 138,218,645,600,944.11/13,519,470.08
  6. Step 6: Final answer
    x = 10,223,673.32

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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.