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Finding the Fourth Proportional to 788,830,961.60, 1,180,978,960.80 and 482,720,945.60

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Solution

The fourth proportional to 788,830,961.60, 1,180,978,960.80 and 482,720,945.60 is: 722,693,845.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,830,961.60 : 1,180,978,960.80 = 482,720,945.60 : x
  2. Step 2: Convert to fraction form
    788,830,961.60/1,180,978,960.80 = 482,720,945.60/x
  3. Step 3: Cross multiply
    788,830,961.60x = 1,180,978,960.80 × 482,720,945.60
  4. Step 4: Simplify right side
    788,830,961.60x = 570,083,280,691,081,344
  5. Step 5: Solve for x
    x = 570,083,280,691,081,344/788,830,961.60
  6. Step 6: Final answer
    x = 722,693,845.00

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1.5x scale

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.