Home / 155,196,021.55-214,175,680.05-84,635,481.65

Finding the Fourth Proportional to 155,196,021.55, 214,175,680.05 and 84,635,481.65

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Solution

The fourth proportional to 155,196,021.55, 214,175,680.05 and 84,635,481.65 is: 116,799,784.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,196,021.55 : 214,175,680.05 = 84,635,481.65 : x
  2. Step 2: Convert to fraction form
    155,196,021.55/214,175,680.05 = 84,635,481.65/x
  3. Step 3: Cross multiply
    155,196,021.55x = 214,175,680.05 × 84,635,481.65
  4. Step 4: Simplify right side
    155,196,021.55x = 18,126,861,838,748,048
  5. Step 5: Solve for x
    x = 18,126,861,838,748,048/155,196,021.55
  6. Step 6: Final answer
    x = 116,799,784.28

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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.