Home / 305,042,706.83-420,959,206.68-165,813,468.59

Finding the Fourth Proportional to 305,042,706.83, 420,959,206.68 and 165,813,468.59

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Solution

The fourth proportional to 305,042,706.83, 420,959,206.68 and 165,813,468.59 is: 228,822,734.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,042,706.83 : 420,959,206.68 = 165,813,468.59 : x
  2. Step 2: Convert to fraction form
    305,042,706.83/420,959,206.68 = 165,813,468.59/x
  3. Step 3: Cross multiply
    305,042,706.83x = 420,959,206.68 × 165,813,468.59
  4. Step 4: Simplify right side
    305,042,706.83x = 69,800,706,192,400,704
  5. Step 5: Solve for x
    x = 69,800,706,192,400,704/305,042,706.83
  6. Step 6: Final answer
    x = 228,822,734.10

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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.