Home / 729,623,868.68-1,093,976,008.14-618,998,191.58

Finding the Fourth Proportional to 729,623,868.68, 1,093,976,008.14 and 618,998,191.58

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Solution

The fourth proportional to 729,623,868.68, 1,093,976,008.14 and 618,998,191.58 is: 928,107,206.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,623,868.68 : 1,093,976,008.14 = 618,998,191.58 : x
  2. Step 2: Convert to fraction form
    729,623,868.68/1,093,976,008.14 = 618,998,191.58/x
  3. Step 3: Cross multiply
    729,623,868.68x = 1,093,976,008.14 × 618,998,191.58
  4. Step 4: Simplify right side
    729,623,868.68x = 677,169,170,675,654,528
  5. Step 5: Solve for x
    x = 677,169,170,675,654,528/729,623,868.68
  6. Step 6: Final answer
    x = 928,107,206.66

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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.