Home / 66,862,980.78-100,295,243.34-20,176,871.02

Finding the Fourth Proportional to 66,862,980.78, 100,295,243.34 and 20,176,871.02

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Solution

The fourth proportional to 66,862,980.78, 100,295,243.34 and 20,176,871.02 is: 30,265,539.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,862,980.78 : 100,295,243.34 = 20,176,871.02 : x
  2. Step 2: Convert to fraction form
    66,862,980.78/100,295,243.34 = 20,176,871.02/x
  3. Step 3: Cross multiply
    66,862,980.78x = 100,295,243.34 × 20,176,871.02
  4. Step 4: Simplify right side
    66,862,980.78x = 2,023,644,188,790,694
  5. Step 5: Solve for x
    x = 2,023,644,188,790,694/66,862,980.78
  6. Step 6: Final answer
    x = 30,265,539.54

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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.