Home / 66,567,993.20-99,684,028.20-53,131,065.20

Finding the Fourth Proportional to 66,567,993.20, 99,684,028.20 and 53,131,065.20

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Solution

The fourth proportional to 66,567,993.20, 99,684,028.20 and 53,131,065.20 is: 79,562,539.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,567,993.20 : 99,684,028.20 = 53,131,065.20 : x
  2. Step 2: Convert to fraction form
    66,567,993.20/99,684,028.20 = 53,131,065.20/x
  3. Step 3: Cross multiply
    66,567,993.20x = 99,684,028.20 × 53,131,065.20
  4. Step 4: Simplify right side
    66,567,993.20x = 5,296,318,601,692,839
  5. Step 5: Solve for x
    x = 5,296,318,601,692,839/66,567,993.20
  6. Step 6: Final answer
    x = 79,562,539.70

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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.