Home / 66,430,906.80-99,646,360.20-18,561,850.80

Finding the Fourth Proportional to 66,430,906.80, 99,646,360.20 and 18,561,850.80

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Solution

The fourth proportional to 66,430,906.80, 99,646,360.20 and 18,561,850.80 is: 27,842,776.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430,906.80 : 99,646,360.20 = 18,561,850.80 : x
  2. Step 2: Convert to fraction form
    66,430,906.80/99,646,360.20 = 18,561,850.80/x
  3. Step 3: Cross multiply
    66,430,906.80x = 99,646,360.20 × 18,561,850.80
  4. Step 4: Simplify right side
    66,430,906.80x = 1,849,620,870,795,458.25
  5. Step 5: Solve for x
    x = 1,849,620,870,795,458.25/66,430,906.80
  6. Step 6: Final answer
    x = 27,842,776.20

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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.