Home / 938,697,769.20-1,408,039,655.40-283,647,529.20

Finding the Fourth Proportional to 938,697,769.20, 1,408,039,655.40 and 283,647,529.20

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Solution

The fourth proportional to 938,697,769.20, 1,408,039,655.40 and 283,647,529.20 is: 425,469,179.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,697,769.20 : 1,408,039,655.40 = 283,647,529.20 : x
  2. Step 2: Convert to fraction form
    938,697,769.20/1,408,039,655.40 = 283,647,529.20/x
  3. Step 3: Cross multiply
    938,697,769.20x = 1,408,039,655.40 × 283,647,529.20
  4. Step 4: Simplify right side
    938,697,769.20x = 399,386,969,269,829,440
  5. Step 5: Solve for x
    x = 399,386,969,269,829,440/938,697,769.20
  6. Step 6: Final answer
    x = 425,469,179.08

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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.