Home / 1,227,131,487.28-1,840,956,062.37-398,020,738.51

Finding the Fourth Proportional to 1,227,131,487.28, 1,840,956,062.37 and 398,020,738.51

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Solution

The fourth proportional to 1,227,131,487.28, 1,840,956,062.37 and 398,020,738.51 is: 597,115,059.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,131,487.28 : 1,840,956,062.37 = 398,020,738.51 : x
  2. Step 2: Convert to fraction form
    1,227,131,487.28/1,840,956,062.37 = 398,020,738.51/x
  3. Step 3: Cross multiply
    1,227,131,487.28x = 1,840,956,062.37 × 398,020,738.51
  4. Step 4: Simplify right side
    1,227,131,487.28x = 732,738,691,499,764,224
  5. Step 5: Solve for x
    x = 732,738,691,499,764,224/1,227,131,487.28
  6. Step 6: Final answer
    x = 597,115,059.88

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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.