Home / 10,647,985.78-15,974,671.92-2,971,629.28

Finding the Fourth Proportional to 10,647,985.78, 15,974,671.92 and 2,971,629.28

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Solution

The fourth proportional to 10,647,985.78, 15,974,671.92 and 2,971,629.28 is: 4,458,195.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,647,985.78 : 15,974,671.92 = 2,971,629.28 : x
  2. Step 2: Convert to fraction form
    10,647,985.78/15,974,671.92 = 2,971,629.28/x
  3. Step 3: Cross multiply
    10,647,985.78x = 15,974,671.92 × 2,971,629.28
  4. Step 4: Simplify right side
    10,647,985.78x = 47,470,802,815,865.81
  5. Step 5: Solve for x
    x = 47,470,802,815,865.81/10,647,985.78
  6. Step 6: Final answer
    x = 4,458,195.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.