Home / 531,780,913.96-733,980,105.28-311,835,198.76

Finding the Fourth Proportional to 531,780,913.96, 733,980,105.28 and 311,835,198.76

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Solution

The fourth proportional to 531,780,913.96, 733,980,105.28 and 311,835,198.76 is: 430,404,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,780,913.96 : 733,980,105.28 = 311,835,198.76 : x
  2. Step 2: Convert to fraction form
    531,780,913.96/733,980,105.28 = 311,835,198.76/x
  3. Step 3: Cross multiply
    531,780,913.96x = 733,980,105.28 × 311,835,198.76
  4. Step 4: Simplify right side
    531,780,913.96x = 228,880,832,015,874,496
  5. Step 5: Solve for x
    x = 228,880,832,015,874,496/531,780,913.96
  6. Step 6: Final answer
    x = 430,404,375.20

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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.