Home / 66,431,774.80-99,647,662.20-18,562,718.80

Finding the Fourth Proportional to 66,431,774.80, 99,647,662.20 and 18,562,718.80

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Solution

The fourth proportional to 66,431,774.80, 99,647,662.20 and 18,562,718.80 is: 27,844,078.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,431,774.80 : 99,647,662.20 = 18,562,718.80 : x
  2. Step 2: Convert to fraction form
    66,431,774.80/99,647,662.20 = 18,562,718.80/x
  3. Step 3: Cross multiply
    66,431,774.80x = 99,647,662.20 × 18,562,718.80
  4. Step 4: Simplify right side
    66,431,774.80x = 1,849,731,532,495,989.50
  5. Step 5: Solve for x
    x = 1,849,731,532,495,989.50/66,431,774.80
  6. Step 6: Final answer
    x = 27,844,078.20

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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.