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Finding the Fourth Proportional to 788,830,321.60, 1,180,978,000.80 and 482,720,305.60

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Solution

The fourth proportional to 788,830,321.60, 1,180,978,000.80 and 482,720,305.60 is: 722,692,885.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,830,321.60 : 1,180,978,000.80 = 482,720,305.60 : x
  2. Step 2: Convert to fraction form
    788,830,321.60/1,180,978,000.80 = 482,720,305.60/x
  3. Step 3: Cross multiply
    788,830,321.60x = 1,180,978,000.80 × 482,720,305.60
  4. Step 4: Simplify right side
    788,830,321.60x = 570,082,061,453,053,056
  5. Step 5: Solve for x
    x = 570,082,061,453,053,056/788,830,321.60
  6. Step 6: Final answer
    x = 722,692,885.71

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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.