Home / 66,389,644.21-91,624,240.26-40,282,113.01

Finding the Fourth Proportional to 66,389,644.21, 91,624,240.26 and 40,282,113.01

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Solution

The fourth proportional to 66,389,644.21, 91,624,240.26 and 40,282,113.01 is: 55,593,278.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,389,644.21 : 91,624,240.26 = 40,282,113.01 : x
  2. Step 2: Convert to fraction form
    66,389,644.21/91,624,240.26 = 40,282,113.01/x
  3. Step 3: Cross multiply
    66,389,644.21x = 91,624,240.26 × 40,282,113.01
  4. Step 4: Simplify right side
    66,389,644.21x = 3,690,818,000,150,591
  5. Step 5: Solve for x
    x = 3,690,818,000,150,591/66,389,644.21
  6. Step 6: Final answer
    x = 55,593,278.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.