Home / 1,978,133,947.14-2,729,830,218.76-1,086,118,450.54

Finding the Fourth Proportional to 1,978,133,947.14, 2,729,830,218.76 and 1,086,118,450.54

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Solution

The fourth proportional to 1,978,133,947.14, 2,729,830,218.76 and 1,086,118,450.54 is: 1,498,846,411.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,133,947.14 : 2,729,830,218.76 = 1,086,118,450.54 : x
  2. Step 2: Convert to fraction form
    1,978,133,947.14/2,729,830,218.76 = 1,086,118,450.54/x
  3. Step 3: Cross multiply
    1,978,133,947.14x = 2,729,830,218.76 × 1,086,118,450.54
  4. Step 4: Simplify right side
    1,978,133,947.14x = 2,964,918,967,436,880,384
  5. Step 5: Solve for x
    x = 2,964,918,967,436,880,384/1,978,133,947.14
  6. Step 6: Final answer
    x = 1,498,846,411.15

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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.