Home / 66,284,106.96-99,420,025.78-31,261,190.75

Finding the Fourth Proportional to 66,284,106.96, 99,420,025.78 and 31,261,190.75

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Solution

The fourth proportional to 66,284,106.96, 99,420,025.78 and 31,261,190.75 is: 46,888,892.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,284,106.96 : 99,420,025.78 = 31,261,190.75 : x
  2. Step 2: Convert to fraction form
    66,284,106.96/99,420,025.78 = 31,261,190.75/x
  3. Step 3: Cross multiply
    66,284,106.96x = 99,420,025.78 × 31,261,190.75
  4. Step 4: Simplify right side
    66,284,106.96x = 3,107,988,390,566,124
  5. Step 5: Solve for x
    x = 3,107,988,390,566,124/66,284,106.96
  6. Step 6: Final answer
    x = 46,888,892.88

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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.