Home / 938,697,812.20-1,408,039,719.90-283,647,572.20

Finding the Fourth Proportional to 938,697,812.20, 1,408,039,719.90 and 283,647,572.20

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Solution

The fourth proportional to 938,697,812.20, 1,408,039,719.90 and 283,647,572.20 is: 425,469,243.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,697,812.20 : 1,408,039,719.90 = 283,647,572.20 : x
  2. Step 2: Convert to fraction form
    938,697,812.20/1,408,039,719.90 = 283,647,572.20/x
  3. Step 3: Cross multiply
    938,697,812.20x = 1,408,039,719.90 × 283,647,572.20
  4. Step 4: Simplify right side
    938,697,812.20x = 399,387,048,110,803,008
  5. Step 5: Solve for x
    x = 399,387,048,110,803,008/938,697,812.20
  6. Step 6: Final answer
    x = 425,469,243.58

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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.