Home / 639,945,636.65-959,918,457.25-179,883,805.96

Finding the Fourth Proportional to 639,945,636.65, 959,918,457.25 and 179,883,805.96

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Solution

The fourth proportional to 639,945,636.65, 959,918,457.25 and 179,883,805.96 is: 269,825,709.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,945,636.65 : 959,918,457.25 = 179,883,805.96 : x
  2. Step 2: Convert to fraction form
    639,945,636.65/959,918,457.25 = 179,883,805.96/x
  3. Step 3: Cross multiply
    639,945,636.65x = 959,918,457.25 × 179,883,805.96
  4. Step 4: Simplify right side
    639,945,636.65x = 172,673,785,502,806,336
  5. Step 5: Solve for x
    x = 172,673,785,502,806,336/639,945,636.65
  6. Step 6: Final answer
    x = 269,825,709.58

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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.