Home / 121,072,914.72-167,084,151.84-66,072,314.16

Finding the Fourth Proportional to 121,072,914.72, 167,084,151.84 and 66,072,314.16

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Solution

The fourth proportional to 121,072,914.72, 167,084,151.84 and 66,072,314.16 is: 91,181,719.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,072,914.72 : 167,084,151.84 = 66,072,314.16 : x
  2. Step 2: Convert to fraction form
    121,072,914.72/167,084,151.84 = 66,072,314.16/x
  3. Step 3: Cross multiply
    121,072,914.72x = 167,084,151.84 × 66,072,314.16
  4. Step 4: Simplify right side
    121,072,914.72x = 11,039,636,571,529,622
  5. Step 5: Solve for x
    x = 11,039,636,571,529,622/121,072,914.72
  6. Step 6: Final answer
    x = 91,181,719.69

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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.