Home / 212,857,897.60-319,286,846.40-161,839,561.60

Finding the Fourth Proportional to 212,857,897.60, 319,286,846.40 and 161,839,561.60

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Solution

The fourth proportional to 212,857,897.60, 319,286,846.40 and 161,839,561.60 is: 242,759,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,857,897.60 : 319,286,846.40 = 161,839,561.60 : x
  2. Step 2: Convert to fraction form
    212,857,897.60/319,286,846.40 = 161,839,561.60/x
  3. Step 3: Cross multiply
    212,857,897.60x = 319,286,846.40 × 161,839,561.60
  4. Step 4: Simplify right side
    212,857,897.60x = 51,673,243,246,022,536
  5. Step 5: Solve for x
    x = 51,673,243,246,022,536/212,857,897.60
  6. Step 6: Final answer
    x = 242,759,342.40

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Why These Related Problems?

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