Home / 305,042,710.08-420,959,211.17-165,813,471.85

Finding the Fourth Proportional to 305,042,710.08, 420,959,211.17 and 165,813,471.85

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Solution

The fourth proportional to 305,042,710.08, 420,959,211.17 and 165,813,471.85 is: 228,822,738.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,042,710.08 : 420,959,211.17 = 165,813,471.85 : x
  2. Step 2: Convert to fraction form
    305,042,710.08/420,959,211.17 = 165,813,471.85/x
  3. Step 3: Cross multiply
    305,042,710.08x = 420,959,211.17 × 165,813,471.85
  4. Step 4: Simplify right side
    305,042,710.08x = 69,800,708,311,335,000
  5. Step 5: Solve for x
    x = 69,800,708,311,335,000/305,042,710.08
  6. Step 6: Final answer
    x = 228,822,738.60

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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.