Home / 66,585,004.20-99,771,218.10-55,743,607.80

Finding the Fourth Proportional to 66,585,004.20, 99,771,218.10 and 55,743,607.80

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Solution

The fourth proportional to 66,585,004.20, 99,771,218.10 and 55,743,607.80 is: 83,526,429.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,585,004.20 : 99,771,218.10 = 55,743,607.80 : x
  2. Step 2: Convert to fraction form
    66,585,004.20/99,771,218.10 = 55,743,607.80/x
  3. Step 3: Cross multiply
    66,585,004.20x = 99,771,218.10 × 55,743,607.80
  4. Step 4: Simplify right side
    66,585,004.20x = 5,561,607,651,494,661
  5. Step 5: Solve for x
    x = 5,561,607,651,494,661/66,585,004.20
  6. Step 6: Final answer
    x = 83,526,429.39

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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.