Home / 28,256,414.60-42,384,621.90-10,081,132.40

Finding the Fourth Proportional to 28,256,414.60, 42,384,621.90 and 10,081,132.40

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Solution

The fourth proportional to 28,256,414.60, 42,384,621.90 and 10,081,132.40 is: 15,121,698.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,256,414.60 : 42,384,621.90 = 10,081,132.40 : x
  2. Step 2: Convert to fraction form
    28,256,414.60/42,384,621.90 = 10,081,132.40/x
  3. Step 3: Cross multiply
    28,256,414.60x = 42,384,621.90 × 10,081,132.40
  4. Step 4: Simplify right side
    28,256,414.60x = 427,284,985,097,839.56
  5. Step 5: Solve for x
    x = 427,284,985,097,839.56/28,256,414.60
  6. Step 6: Final answer
    x = 15,121,698.60

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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.