Home / 212,906,748.52-319,311,937.50-97,780,614.76

Finding the Fourth Proportional to 212,906,748.52, 319,311,937.50 and 97,780,614.76

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Solution

The fourth proportional to 212,906,748.52, 319,311,937.50 and 97,780,614.76 is: 146,648,792.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,906,748.52 : 319,311,937.50 = 97,780,614.76 : x
  2. Step 2: Convert to fraction form
    212,906,748.52/319,311,937.50 = 97,780,614.76/x
  3. Step 3: Cross multiply
    212,906,748.52x = 319,311,937.50 × 97,780,614.76
  4. Step 4: Simplify right side
    212,906,748.52x = 31,222,517,548,956,700
  5. Step 5: Solve for x
    x = 31,222,517,548,956,700/212,906,748.52
  6. Step 6: Final answer
    x = 146,648,792.33

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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.