Home / 938,697,811.70-1,408,039,719.15-283,647,571.70

Finding the Fourth Proportional to 938,697,811.70, 1,408,039,719.15 and 283,647,571.70

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Solution

The fourth proportional to 938,697,811.70, 1,408,039,719.15 and 283,647,571.70 is: 425,469,242.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,697,811.70 : 1,408,039,719.15 = 283,647,571.70 : x
  2. Step 2: Convert to fraction form
    938,697,811.70/1,408,039,719.15 = 283,647,571.70/x
  3. Step 3: Cross multiply
    938,697,811.70x = 1,408,039,719.15 × 283,647,571.70
  4. Step 4: Simplify right side
    938,697,811.70x = 399,387,047,194,047,488
  5. Step 5: Solve for x
    x = 399,387,047,194,047,488/938,697,811.70
  6. Step 6: Final answer
    x = 425,469,242.83

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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.