Home / 212,670,892.45-293,478,575.79-117,305,180.38

Finding the Fourth Proportional to 212,670,892.45, 293,478,575.79 and 117,305,180.38

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Solution

The fourth proportional to 212,670,892.45, 293,478,575.79 and 117,305,180.38 is: 161,877,146.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,670,892.45 : 293,478,575.79 = 117,305,180.38 : x
  2. Step 2: Convert to fraction form
    212,670,892.45/293,478,575.79 = 117,305,180.38/x
  3. Step 3: Cross multiply
    212,670,892.45x = 293,478,575.79 × 117,305,180.38
  4. Step 4: Simplify right side
    212,670,892.45x = 34,426,557,270,711,452
  5. Step 5: Solve for x
    x = 34,426,557,270,711,452/212,670,892.45
  6. Step 6: Final answer
    x = 161,877,146.77

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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.