Home / 66,430,228.80-99,645,343.20-18,561,172.80

Finding the Fourth Proportional to 66,430,228.80, 99,645,343.20 and 18,561,172.80

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Solution

The fourth proportional to 66,430,228.80, 99,645,343.20 and 18,561,172.80 is: 27,841,759.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430,228.80 : 99,645,343.20 = 18,561,172.80 : x
  2. Step 2: Convert to fraction form
    66,430,228.80/99,645,343.20 = 18,561,172.80/x
  3. Step 3: Cross multiply
    66,430,228.80x = 99,645,343.20 × 18,561,172.80
  4. Step 4: Simplify right side
    66,430,228.80x = 1,849,534,433,850,505
  5. Step 5: Solve for x
    x = 1,849,534,433,850,505/66,430,228.80
  6. Step 6: Final answer
    x = 27,841,759.20

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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.