Home / 280,185,211.62-420,536,168.55-142,107,725.70

Finding the Fourth Proportional to 280,185,211.62, 420,536,168.55 and 142,107,725.70

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Solution

The fourth proportional to 280,185,211.62, 420,536,168.55 and 142,107,725.70 is: 213,292,622.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,185,211.62 : 420,536,168.55 = 142,107,725.70 : x
  2. Step 2: Convert to fraction form
    280,185,211.62/420,536,168.55 = 142,107,725.70/x
  3. Step 3: Cross multiply
    280,185,211.62x = 420,536,168.55 × 142,107,725.70
  4. Step 4: Simplify right side
    280,185,211.62x = 59,761,438,487,232,360
  5. Step 5: Solve for x
    x = 59,761,438,487,232,360/280,185,211.62
  6. Step 6: Final answer
    x = 213,292,622.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.