Home / 557,043,410.70-768,737,197.86-306,143,237.40

Finding the Fourth Proportional to 557,043,410.70, 768,737,197.86 and 306,143,237.40

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Solution

The fourth proportional to 557,043,410.70, 768,737,197.86 and 306,143,237.40 is: 422,487,170.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,043,410.70 : 768,737,197.86 = 306,143,237.40 : x
  2. Step 2: Convert to fraction form
    557,043,410.70/768,737,197.86 = 306,143,237.40/x
  3. Step 3: Cross multiply
    557,043,410.70x = 768,737,197.86 × 306,143,237.40
  4. Step 4: Simplify right side
    557,043,410.70x = 235,343,694,462,664,736
  5. Step 5: Solve for x
    x = 235,343,694,462,664,736/557,043,410.70
  6. Step 6: Final answer
    x = 422,487,170.55

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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.