Home / 260,310,310.22-390,467,753.48-66,221,930.69

Finding the Fourth Proportional to 260,310,310.22, 390,467,753.48 and 66,221,930.69

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Solution

The fourth proportional to 260,310,310.22, 390,467,753.48 and 66,221,930.69 is: 99,333,478.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,310,310.22 : 390,467,753.48 = 66,221,930.69 : x
  2. Step 2: Convert to fraction form
    260,310,310.22/390,467,753.48 = 66,221,930.69/x
  3. Step 3: Cross multiply
    260,310,310.22x = 390,467,753.48 × 66,221,930.69
  4. Step 4: Simplify right side
    260,310,310.22x = 25,857,528,507,632,568
  5. Step 5: Solve for x
    x = 25,857,528,507,632,568/260,310,310.22
  6. Step 6: Final answer
    x = 99,333,478.13

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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.