Home / 557,458,920.96-769,273,204.48-306,561,200.64

Finding the Fourth Proportional to 557,458,920.96, 769,273,204.48 and 306,561,200.64

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Solution

The fourth proportional to 557,458,920.96, 769,273,204.48 and 306,561,200.64 is: 423,043,399.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,458,920.96 : 769,273,204.48 = 306,561,200.64 : x
  2. Step 2: Convert to fraction form
    557,458,920.96/769,273,204.48 = 306,561,200.64/x
  3. Step 3: Cross multiply
    557,458,920.96x = 769,273,204.48 × 306,561,200.64
  4. Step 4: Simplify right side
    557,458,920.96x = 235,829,317,185,569,024
  5. Step 5: Solve for x
    x = 235,829,317,185,569,024/557,458,920.96
  6. Step 6: Final answer
    x = 423,043,399.82

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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.