Home / 66,302,087.26-99,468,516.42-20,862,700.78

Finding the Fourth Proportional to 66,302,087.26, 99,468,516.42 and 20,862,700.78

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Solution

The fourth proportional to 66,302,087.26, 99,468,516.42 and 20,862,700.78 is: 31,298,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,302,087.26 : 99,468,516.42 = 20,862,700.78 : x
  2. Step 2: Convert to fraction form
    66,302,087.26/99,468,516.42 = 20,862,700.78/x
  3. Step 3: Cross multiply
    66,302,087.26x = 99,468,516.42 × 20,862,700.78
  4. Step 4: Simplify right side
    66,302,087.26x = 2,075,181,895,100,977
  5. Step 5: Solve for x
    x = 2,075,181,895,100,977/66,302,087.26
  6. Step 6: Final answer
    x = 31,298,892.40

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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.