Home / 121,072,984.32-167,084,246.88-66,072,383.52

Finding the Fourth Proportional to 121,072,984.32, 167,084,246.88 and 66,072,383.52

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Solution

The fourth proportional to 121,072,984.32, 167,084,246.88 and 66,072,383.52 is: 91,181,814.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,072,984.32 : 167,084,246.88 = 66,072,383.52 : x
  2. Step 2: Convert to fraction form
    121,072,984.32/167,084,246.88 = 66,072,383.52/x
  3. Step 3: Cross multiply
    121,072,984.32x = 167,084,246.88 × 66,072,383.52
  4. Step 4: Simplify right side
    121,072,984.32x = 11,039,654,440,005,724
  5. Step 5: Solve for x
    x = 11,039,654,440,005,724/121,072,984.32
  6. Step 6: Final answer
    x = 91,181,814.85

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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.