Home / 1,296,091,828.53-1,788,414,316.70-787,189,718.73

Finding the Fourth Proportional to 1,296,091,828.53, 1,788,414,316.70 and 787,189,718.73

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Solution

The fourth proportional to 1,296,091,828.53, 1,788,414,316.70 and 787,189,718.73 is: 1,086,204,952.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,091,828.53 : 1,788,414,316.70 = 787,189,718.73 : x
  2. Step 2: Convert to fraction form
    1,296,091,828.53/1,788,414,316.70 = 787,189,718.73/x
  3. Step 3: Cross multiply
    1,296,091,828.53x = 1,788,414,316.70 × 787,189,718.73
  4. Step 4: Simplify right side
    1,296,091,828.53x = 1,407,821,362,922,900,224
  5. Step 5: Solve for x
    x = 1,407,821,362,922,900,224/1,296,091,828.53
  6. Step 6: Final answer
    x = 1,086,204,952.41

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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.