Home / 81,294,729.24-121,922,568.91-37,533,441.82

Finding the Fourth Proportional to 81,294,729.24, 121,922,568.91 and 37,533,441.82

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Solution

The fourth proportional to 81,294,729.24, 121,922,568.91 and 37,533,441.82 is: 56,291,148.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,294,729.24 : 121,922,568.91 = 37,533,441.82 : x
  2. Step 2: Convert to fraction form
    81,294,729.24/121,922,568.91 = 37,533,441.82/x
  3. Step 3: Cross multiply
    81,294,729.24x = 121,922,568.91 × 37,533,441.82
  4. Step 4: Simplify right side
    81,294,729.24x = 4,576,173,646,423,620
  5. Step 5: Solve for x
    x = 4,576,173,646,423,620/81,294,729.24
  6. Step 6: Final answer
    x = 56,291,148.14

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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.