Home / 121,923,027.96-168,253,866.42-66,168,433.65

Finding the Fourth Proportional to 121,923,027.96, 168,253,866.42 and 66,168,433.65

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Solution

The fourth proportional to 121,923,027.96, 168,253,866.42 and 66,168,433.65 is: 91,312,486.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,923,027.96 : 168,253,866.42 = 66,168,433.65 : x
  2. Step 2: Convert to fraction form
    121,923,027.96/168,253,866.42 = 66,168,433.65/x
  3. Step 3: Cross multiply
    121,923,027.96x = 168,253,866.42 × 66,168,433.65
  4. Step 4: Simplify right side
    121,923,027.96x = 11,133,094,796,567,732
  5. Step 5: Solve for x
    x = 11,133,094,796,567,732/121,923,027.96
  6. Step 6: Final answer
    x = 91,312,486.11

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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.