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Finding the Fourth Proportional to 488,809,958.40, 733,214,937.60 and 425,674,767.60

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Solution

The fourth proportional to 488,809,958.40, 733,214,937.60 and 425,674,767.60 is: 638,512,151.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,809,958.40 : 733,214,937.60 = 425,674,767.60 : x
  2. Step 2: Convert to fraction form
    488,809,958.40/733,214,937.60 = 425,674,767.60/x
  3. Step 3: Cross multiply
    488,809,958.40x = 733,214,937.60 × 425,674,767.60
  4. Step 4: Simplify right side
    488,809,958.40x = 312,111,098,163,728,512
  5. Step 5: Solve for x
    x = 312,111,098,163,728,512/488,809,958.40
  6. Step 6: Final answer
    x = 638,512,151.40

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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.