Home / 384,344,828.28-530,396,150.42-208,133,016.82

Finding the Fourth Proportional to 384,344,828.28, 530,396,150.42 and 208,133,016.82

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Solution

The fourth proportional to 384,344,828.28, 530,396,150.42 and 208,133,016.82 is: 287,223,718.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,344,828.28 : 530,396,150.42 = 208,133,016.82 : x
  2. Step 2: Convert to fraction form
    384,344,828.28/530,396,150.42 = 208,133,016.82/x
  3. Step 3: Cross multiply
    384,344,828.28x = 530,396,150.42 × 208,133,016.82
  4. Step 4: Simplify right side
    384,344,828.28x = 110,392,950,895,823,456
  5. Step 5: Solve for x
    x = 110,392,950,895,823,456/384,344,828.28
  6. Step 6: Final answer
    x = 287,223,718.84

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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.