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Finding the Fourth Proportional to 702,837,778.92, 969,914,461.32 and 385,297,460.88

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Solution

The fourth proportional to 702,837,778.92, 969,914,461.32 and 385,297,460.88 is: 531,709,578.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,837,778.92 : 969,914,461.32 = 385,297,460.88 : x
  2. Step 2: Convert to fraction form
    702,837,778.92/969,914,461.32 = 385,297,460.88/x
  3. Step 3: Cross multiply
    702,837,778.92x = 969,914,461.32 × 385,297,460.88
  4. Step 4: Simplify right side
    702,837,778.92x = 373,705,579,217,388,992
  5. Step 5: Solve for x
    x = 373,705,579,217,388,992/702,837,778.92
  6. Step 6: Final answer
    x = 531,709,578.55

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.