Home / 629,303,871.21-868,606,833.06-371,741,135.82

Finding the Fourth Proportional to 629,303,871.21, 868,606,833.06 and 371,741,135.82

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Solution

The fourth proportional to 629,303,871.21, 868,606,833.06 and 371,741,135.82 is: 513,101,707.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,303,871.21 : 868,606,833.06 = 371,741,135.82 : x
  2. Step 2: Convert to fraction form
    629,303,871.21/868,606,833.06 = 371,741,135.82/x
  3. Step 3: Cross multiply
    629,303,871.21x = 868,606,833.06 × 371,741,135.82
  4. Step 4: Simplify right side
    629,303,871.21x = 322,896,890,702,737,472
  5. Step 5: Solve for x
    x = 322,896,890,702,737,472/629,303,871.21
  6. Step 6: Final answer
    x = 513,101,707.26

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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.