Home / 188,290,418.40-282,435,627.60-67,078,130.40

Finding the Fourth Proportional to 188,290,418.40, 282,435,627.60 and 67,078,130.40

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Solution

The fourth proportional to 188,290,418.40, 282,435,627.60 and 67,078,130.40 is: 100,617,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,290,418.40 : 282,435,627.60 = 67,078,130.40 : x
  2. Step 2: Convert to fraction form
    188,290,418.40/282,435,627.60 = 67,078,130.40/x
  3. Step 3: Cross multiply
    188,290,418.40x = 282,435,627.60 × 67,078,130.40
  4. Step 4: Simplify right side
    188,290,418.40x = 18,945,253,857,758,640
  5. Step 5: Solve for x
    x = 18,945,253,857,758,640/188,290,418.40
  6. Step 6: Final answer
    x = 100,617,195.60

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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.