Home / 748,699,744.56-1,123,151,816.64-311,898,278.72

Finding the Fourth Proportional to 748,699,744.56, 1,123,151,816.64 and 311,898,278.72

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Solution

The fourth proportional to 748,699,744.56, 1,123,151,816.64 and 311,898,278.72 is: 467,889,993.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,699,744.56 : 1,123,151,816.64 = 311,898,278.72 : x
  2. Step 2: Convert to fraction form
    748,699,744.56/1,123,151,816.64 = 311,898,278.72/x
  3. Step 3: Cross multiply
    748,699,744.56x = 1,123,151,816.64 × 311,898,278.72
  4. Step 4: Simplify right side
    748,699,744.56x = 350,309,118,351,257,088
  5. Step 5: Solve for x
    x = 350,309,118,351,257,088/748,699,744.56
  6. Step 6: Final answer
    x = 467,889,993.15

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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.