Home / 557,457,638.92-769,073,812.07-319,175,475.81

Finding the Fourth Proportional to 557,457,638.92, 769,073,812.07 and 319,175,475.81

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Solution

The fourth proportional to 557,457,638.92, 769,073,812.07 and 319,175,475.81 is: 440,337,494.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,457,638.92 : 769,073,812.07 = 319,175,475.81 : x
  2. Step 2: Convert to fraction form
    557,457,638.92/769,073,812.07 = 319,175,475.81/x
  3. Step 3: Cross multiply
    557,457,638.92x = 769,073,812.07 × 319,175,475.81
  4. Step 4: Simplify right side
    557,457,638.92x = 245,469,499,900,452,800
  5. Step 5: Solve for x
    x = 245,469,499,900,452,800/557,457,638.92
  6. Step 6: Final answer
    x = 440,337,494.30

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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.