Home / 1,123,694,399.97-1,550,686,849.70-621,904,157.91

Finding the Fourth Proportional to 1,123,694,399.97, 1,550,686,849.70 and 621,904,157.91

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Solution

The fourth proportional to 1,123,694,399.97, 1,550,686,849.70 and 621,904,157.91 is: 858,221,416.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,694,399.97 : 1,550,686,849.70 = 621,904,157.91 : x
  2. Step 2: Convert to fraction form
    1,123,694,399.97/1,550,686,849.70 = 621,904,157.91/x
  3. Step 3: Cross multiply
    1,123,694,399.97x = 1,550,686,849.70 × 621,904,157.91
  4. Step 4: Simplify right side
    1,123,694,399.97x = 964,378,599,441,679,616
  5. Step 5: Solve for x
    x = 964,378,599,441,679,616/1,123,694,399.97
  6. Step 6: Final answer
    x = 858,221,416.31

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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.