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Finding the Fourth Proportional to 1,318,685,771.70, 1,978,028,657.55 and 336,110,411.70

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Solution

The fourth proportional to 1,318,685,771.70, 1,978,028,657.55 and 336,110,411.70 is: 504,165,617.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,685,771.70 : 1,978,028,657.55 = 336,110,411.70 : x
  2. Step 2: Convert to fraction form
    1,318,685,771.70/1,978,028,657.55 = 336,110,411.70/x
  3. Step 3: Cross multiply
    1,318,685,771.70x = 1,978,028,657.55 × 336,110,411.70
  4. Step 4: Simplify right side
    1,318,685,771.70x = 664,836,026,443,528,832
  5. Step 5: Solve for x
    x = 664,836,026,443,528,832/1,318,685,771.70
  6. Step 6: Final answer
    x = 504,165,617.55

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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.