Home / 646,160,751,029.15-969,260,872,234.05-221,683,061,789.05

Finding the Fourth Proportional to 646,160,751,029.15, 969,260,872,234.05 and 221,683,061,789.05

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Solution

The fourth proportional to 646,160,751,029.15, 969,260,872,234.05 and 221,683,061,789.05 is: 332,531,366,980.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,160,751,029.15 : 969,260,872,234.05 = 221,683,061,789.05 : x
  2. Step 2: Convert to fraction form
    646,160,751,029.15/969,260,872,234.05 = 221,683,061,789.05/x
  3. Step 3: Cross multiply
    646,160,751,029.15x = 969,260,872,234.05 × 221,683,061,789.05
  4. Step 4: Simplify right side
    646,160,751,029.15x = 214,868,717,829,169,394,745,344
  5. Step 5: Solve for x
    x = 214,868,717,829,169,394,745,344/646,160,751,029.15
  6. Step 6: Final answer
    x = 332,531,366,980.96

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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.