Home / 1,939,039,775.24-2,908,968,208.49-628,839,665.78

Finding the Fourth Proportional to 1,939,039,775.24, 2,908,968,208.49 and 628,839,665.78

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Solution

The fourth proportional to 1,939,039,775.24, 2,908,968,208.49 and 628,839,665.78 is: 943,391,991.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,039,775.24 : 2,908,968,208.49 = 628,839,665.78 : x
  2. Step 2: Convert to fraction form
    1,939,039,775.24/2,908,968,208.49 = 628,839,665.78/x
  3. Step 3: Cross multiply
    1,939,039,775.24x = 2,908,968,208.49 × 628,839,665.78
  4. Step 4: Simplify right side
    1,939,039,775.24x = 1,829,274,595,978,524,160
  5. Step 5: Solve for x
    x = 1,829,274,595,978,524,160/1,939,039,775.24
  6. Step 6: Final answer
    x = 943,391,991.92

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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.