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Finding the Fourth Proportional to 936,348,002.60, 1,404,522,003.90 and 878,952,374.60

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Solution

The fourth proportional to 936,348,002.60, 1,404,522,003.90 and 878,952,374.60 is: 1,318,428,561.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,348,002.60 : 1,404,522,003.90 = 878,952,374.60 : x
  2. Step 2: Convert to fraction form
    936,348,002.60/1,404,522,003.90 = 878,952,374.60/x
  3. Step 3: Cross multiply
    936,348,002.60x = 1,404,522,003.90 × 878,952,374.60
  4. Step 4: Simplify right side
    936,348,002.60x = 1,234,507,950,505,855,488
  5. Step 5: Solve for x
    x = 1,234,507,950,505,855,488/936,348,002.60
  6. Step 6: Final answer
    x = 1,318,428,561.90

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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.