Home / 13,286,919.60-18,335,948.94-7,175,347.56

Finding the Fourth Proportional to 13,286,919.60, 18,335,948.94 and 7,175,347.56

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Solution

The fourth proportional to 13,286,919.60, 18,335,948.94 and 7,175,347.56 is: 9,901,979.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,919.60 : 18,335,948.94 = 7,175,347.56 : x
  2. Step 2: Convert to fraction form
    13,286,919.60/18,335,948.94 = 7,175,347.56/x
  3. Step 3: Cross multiply
    13,286,919.60x = 18,335,948.94 × 7,175,347.56
  4. Step 4: Simplify right side
    13,286,919.60x = 131,566,806,486,913.59
  5. Step 5: Solve for x
    x = 131,566,806,486,913.59/13,286,919.60
  6. Step 6: Final answer
    x = 9,901,979.57

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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.