Home / 155,385,680.04-214,432,205.94-85,771,042.56

Finding the Fourth Proportional to 155,385,680.04, 214,432,205.94 and 85,771,042.56

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Solution

The fourth proportional to 155,385,680.04, 214,432,205.94 and 85,771,042.56 is: 118,364,020.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,385,680.04 : 214,432,205.94 = 85,771,042.56 : x
  2. Step 2: Convert to fraction form
    155,385,680.04/214,432,205.94 = 85,771,042.56/x
  3. Step 3: Cross multiply
    155,385,680.04x = 214,432,205.94 × 85,771,042.56
  4. Step 4: Simplify right side
    155,385,680.04x = 18,392,073,861,914,424
  5. Step 5: Solve for x
    x = 18,392,073,861,914,424/155,385,680.04
  6. Step 6: Final answer
    x = 118,364,020.78

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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.