Home / 13,640,002.76-18,821,863.68-7,528,037.60

Finding the Fourth Proportional to 13,640,002.76, 18,821,863.68 and 7,528,037.60

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Solution

The fourth proportional to 13,640,002.76, 18,821,863.68 and 7,528,037.60 is: 10,387,952.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,640,002.76 : 18,821,863.68 = 7,528,037.60 : x
  2. Step 2: Convert to fraction form
    13,640,002.76/18,821,863.68 = 7,528,037.60/x
  3. Step 3: Cross multiply
    13,640,002.76x = 18,821,863.68 × 7,528,037.60
  4. Step 4: Simplify right side
    13,640,002.76x = 141,691,697,485,114.34
  5. Step 5: Solve for x
    x = 141,691,697,485,114.34/13,640,002.76
  6. Step 6: Final answer
    x = 10,387,952.26

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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.