Home / 186,391,072.69-279,626,967.38-71,375,619.12

Finding the Fourth Proportional to 186,391,072.69, 279,626,967.38 and 71,375,619.12

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Solution

The fourth proportional to 186,391,072.69, 279,626,967.38 and 71,375,619.12 is: 107,078,883.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,391,072.69 : 279,626,967.38 = 71,375,619.12 : x
  2. Step 2: Convert to fraction form
    186,391,072.69/279,626,967.38 = 71,375,619.12/x
  3. Step 3: Cross multiply
    186,391,072.69x = 279,626,967.38 × 71,375,619.12
  4. Step 4: Simplify right side
    186,391,072.69x = 19,958,547,918,525,380
  5. Step 5: Solve for x
    x = 19,958,547,918,525,380/186,391,072.69
  6. Step 6: Final answer
    x = 107,078,883.29

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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.