Home / 1,978,133,785.08-2,729,829,994.89-1,086,118,288.48

Finding the Fourth Proportional to 1,978,133,785.08, 2,729,829,994.89 and 1,086,118,288.48

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Solution

The fourth proportional to 1,978,133,785.08, 2,729,829,994.89 and 1,086,118,288.48 is: 1,498,846,187.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,133,785.08 : 2,729,829,994.89 = 1,086,118,288.48 : x
  2. Step 2: Convert to fraction form
    1,978,133,785.08/2,729,829,994.89 = 1,086,118,288.48/x
  3. Step 3: Cross multiply
    1,978,133,785.08x = 2,729,829,994.89 × 1,086,118,288.48
  4. Step 4: Simplify right side
    1,978,133,785.08x = 2,964,918,281,891,293,696
  5. Step 5: Solve for x
    x = 2,964,918,281,891,293,696/1,978,133,785.08
  6. Step 6: Final answer
    x = 1,498,846,187.38

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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.