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Finding the Fourth Proportional to 165,978,176.10, 248,967,264.15 and 89,450,672.10

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Solution

The fourth proportional to 165,978,176.10, 248,967,264.15 and 89,450,672.10 is: 134,176,008.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,978,176.10 : 248,967,264.15 = 89,450,672.10 : x
  2. Step 2: Convert to fraction form
    165,978,176.10/248,967,264.15 = 89,450,672.10/x
  3. Step 3: Cross multiply
    165,978,176.10x = 248,967,264.15 × 89,450,672.10
  4. Step 4: Simplify right side
    165,978,176.10x = 22,270,289,109,115,736
  5. Step 5: Solve for x
    x = 22,270,289,109,115,736/165,978,176.10
  6. Step 6: Final answer
    x = 134,176,008.15

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