Home / 557,457,639.92-769,073,813.45-319,175,476.81

Finding the Fourth Proportional to 557,457,639.92, 769,073,813.45 and 319,175,476.81

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Solution

The fourth proportional to 557,457,639.92, 769,073,813.45 and 319,175,476.81 is: 440,337,495.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,457,639.92 : 769,073,813.45 = 319,175,476.81 : x
  2. Step 2: Convert to fraction form
    557,457,639.92/769,073,813.45 = 319,175,476.81/x
  3. Step 3: Cross multiply
    557,457,639.92x = 769,073,813.45 × 319,175,476.81
  4. Step 4: Simplify right side
    557,457,639.92x = 245,469,501,109,988,768
  5. Step 5: Solve for x
    x = 245,469,501,109,988,768/557,457,639.92
  6. Step 6: Final answer
    x = 440,337,495.68

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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.