Home / 291,931,406.33-400,719,391.94-258,151,529.21

Finding the Fourth Proportional to 291,931,406.33, 400,719,391.94 and 258,151,529.21

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Solution

The fourth proportional to 291,931,406.33, 400,719,391.94 and 258,151,529.21 is: 354,351,472.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,931,406.33 : 400,719,391.94 = 258,151,529.21 : x
  2. Step 2: Convert to fraction form
    291,931,406.33/400,719,391.94 = 258,151,529.21/x
  3. Step 3: Cross multiply
    291,931,406.33x = 400,719,391.94 × 258,151,529.21
  4. Step 4: Simplify right side
    291,931,406.33x = 103,446,323,813,412,352
  5. Step 5: Solve for x
    x = 103,446,323,813,412,352/291,931,406.33
  6. Step 6: Final answer
    x = 354,351,472.88

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.