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Finding the Fourth Proportional to 528,057,861.90, 792,086,792.85 and 482,670,905.10

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Solution

The fourth proportional to 528,057,861.90, 792,086,792.85 and 482,670,905.10 is: 724,006,357.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,057,861.90 : 792,086,792.85 = 482,670,905.10 : x
  2. Step 2: Convert to fraction form
    528,057,861.90/792,086,792.85 = 482,670,905.10/x
  3. Step 3: Cross multiply
    528,057,861.90x = 792,086,792.85 × 482,670,905.10
  4. Step 4: Simplify right side
    528,057,861.90x = 382,317,249,222,665,728
  5. Step 5: Solve for x
    x = 382,317,249,222,665,728/528,057,861.90
  6. Step 6: Final answer
    x = 724,006,357.65

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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.