Home / 278,788,037.78-418,229,698.76-114,936,224.60

Finding the Fourth Proportional to 278,788,037.78, 418,229,698.76 and 114,936,224.60

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Solution

The fourth proportional to 278,788,037.78, 418,229,698.76 and 114,936,224.60 is: 172,423,978.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,788,037.78 : 418,229,698.76 = 114,936,224.60 : x
  2. Step 2: Convert to fraction form
    278,788,037.78/418,229,698.76 = 114,936,224.60/x
  3. Step 3: Cross multiply
    278,788,037.78x = 418,229,698.76 × 114,936,224.60
  4. Step 4: Simplify right side
    278,788,037.78x = 48,069,742,591,540,600
  5. Step 5: Solve for x
    x = 48,069,742,591,540,600/278,788,037.78
  6. Step 6: Final answer
    x = 172,423,978.35

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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.