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Finding the Fourth Proportional to 1,309,970,998.80, 1,964,389,627.80 and 533,358,550.80

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Solution

The fourth proportional to 1,309,970,998.80, 1,964,389,627.80 and 533,358,550.80 is: 799,807,023.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,970,998.80 : 1,964,389,627.80 = 533,358,550.80 : x
  2. Step 2: Convert to fraction form
    1,309,970,998.80/1,964,389,627.80 = 533,358,550.80/x
  3. Step 3: Cross multiply
    1,309,970,998.80x = 1,964,389,627.80 × 533,358,550.80
  4. Step 4: Simplify right side
    1,309,970,998.80x = 1,047,724,005,089,959,424
  5. Step 5: Solve for x
    x = 1,047,724,005,089,959,424/1,309,970,998.80
  6. Step 6: Final answer
    x = 799,807,023.25

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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.