Home / 66,171,239.60-99,259,969.80-20,734,516.40

Finding the Fourth Proportional to 66,171,239.60, 99,259,969.80 and 20,734,516.40

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Solution

The fourth proportional to 66,171,239.60, 99,259,969.80 and 20,734,516.40 is: 31,102,749.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,171,239.60 : 99,259,969.80 = 20,734,516.40 : x
  2. Step 2: Convert to fraction form
    66,171,239.60/99,259,969.80 = 20,734,516.40/x
  3. Step 3: Cross multiply
    66,171,239.60x = 99,259,969.80 × 20,734,516.40
  4. Step 4: Simplify right side
    66,171,239.60x = 2,058,107,471,681,604.50
  5. Step 5: Solve for x
    x = 2,058,107,471,681,604.50/66,171,239.60
  6. Step 6: Final answer
    x = 31,102,749.23

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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.