Home / 418,629,590.34-627,896,550.15-111,945,627.78

Finding the Fourth Proportional to 418,629,590.34, 627,896,550.15 and 111,945,627.78

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Solution

The fourth proportional to 418,629,590.34, 627,896,550.15 and 111,945,627.78 is: 167,905,650.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,629,590.34 : 627,896,550.15 = 111,945,627.78 : x
  2. Step 2: Convert to fraction form
    418,629,590.34/627,896,550.15 = 111,945,627.78/x
  3. Step 3: Cross multiply
    418,629,590.34x = 627,896,550.15 × 111,945,627.78
  4. Step 4: Simplify right side
    418,629,590.34x = 70,290,273,487,438,000
  5. Step 5: Solve for x
    x = 70,290,273,487,438,000/418,629,590.34
  6. Step 6: Final answer
    x = 167,905,650.03

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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.