Home / 287,313,811.22-430,970,722.55-68,964,153.33

Finding the Fourth Proportional to 287,313,811.22, 430,970,722.55 and 68,964,153.33

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Solution

The fourth proportional to 287,313,811.22, 430,970,722.55 and 68,964,153.33 is: 103,446,231.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,313,811.22 : 430,970,722.55 = 68,964,153.33 : x
  2. Step 2: Convert to fraction form
    287,313,811.22/430,970,722.55 = 68,964,153.33/x
  3. Step 3: Cross multiply
    287,313,811.22x = 430,970,722.55 × 68,964,153.33
  4. Step 4: Simplify right side
    287,313,811.22x = 29,721,530,990,334,268
  5. Step 5: Solve for x
    x = 29,721,530,990,334,268/287,313,811.22
  6. Step 6: Final answer
    x = 103,446,231.37

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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.