Home / 66,315,064.12-91,512,642.96-38,062,087.80

Finding the Fourth Proportional to 66,315,064.12, 91,512,642.96 and 38,062,087.80

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Solution

The fourth proportional to 66,315,064.12, 91,512,642.96 and 38,062,087.80 is: 52,524,449.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,315,064.12 : 91,512,642.96 = 38,062,087.80 : x
  2. Step 2: Convert to fraction form
    66,315,064.12/91,512,642.96 = 38,062,087.80/x
  3. Step 3: Cross multiply
    66,315,064.12x = 91,512,642.96 × 38,062,087.80
  4. Step 4: Simplify right side
    66,315,064.12x = 3,483,162,251,153,571.50
  5. Step 5: Solve for x
    x = 3,483,162,251,153,571.50/66,315,064.12
  6. Step 6: Final answer
    x = 52,524,449.72

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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.