Home / 729,623,868.07-1,093,976,007.20-618,998,190.97

Finding the Fourth Proportional to 729,623,868.07, 1,093,976,007.20 and 618,998,190.97

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Solution

The fourth proportional to 729,623,868.07, 1,093,976,007.20 and 618,998,190.97 is: 928,107,205.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,623,868.07 : 1,093,976,007.20 = 618,998,190.97 : x
  2. Step 2: Convert to fraction form
    729,623,868.07/1,093,976,007.20 = 618,998,190.97/x
  3. Step 3: Cross multiply
    729,623,868.07x = 1,093,976,007.20 × 618,998,190.97
  4. Step 4: Simplify right side
    729,623,868.07x = 677,169,169,412,818,816
  5. Step 5: Solve for x
    x = 677,169,169,412,818,816/729,623,868.07
  6. Step 6: Final answer
    x = 928,107,205.72

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1.5x scale

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.