Home / 305,042,706.45-420,959,206.16-165,813,468.22

Finding the Fourth Proportional to 305,042,706.45, 420,959,206.16 and 165,813,468.22

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Solution

The fourth proportional to 305,042,706.45, 420,959,206.16 and 165,813,468.22 is: 228,822,733.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,042,706.45 : 420,959,206.16 = 165,813,468.22 : x
  2. Step 2: Convert to fraction form
    305,042,706.45/420,959,206.16 = 165,813,468.22/x
  3. Step 3: Cross multiply
    305,042,706.45x = 420,959,206.16 × 165,813,468.22
  4. Step 4: Simplify right side
    305,042,706.45x = 69,800,705,950,646,120
  5. Step 5: Solve for x
    x = 69,800,705,950,646,120/305,042,706.45
  6. Step 6: Final answer
    x = 228,822,733.59

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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.