Home / 66,472,630.16-91,747,535.09-38,979,415.76

Finding the Fourth Proportional to 66,472,630.16, 91,747,535.09 and 38,979,415.76

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Solution

The fourth proportional to 66,472,630.16, 91,747,535.09 and 38,979,415.76 is: 53,800,568.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472,630.16 : 91,747,535.09 = 38,979,415.76 : x
  2. Step 2: Convert to fraction form
    66,472,630.16/91,747,535.09 = 38,979,415.76/x
  3. Step 3: Cross multiply
    66,472,630.16x = 91,747,535.09 × 38,979,415.76
  4. Step 4: Simplify right side
    66,472,630.16x = 3,576,265,314,574,664.50
  5. Step 5: Solve for x
    x = 3,576,265,314,574,664.50/66,472,630.16
  6. Step 6: Final answer
    x = 53,800,568.84

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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.