Home / 66,992,443.91-100,464,884.99-19,655,760.80

Finding the Fourth Proportional to 66,992,443.91, 100,464,884.99 and 19,655,760.80

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Solution

The fourth proportional to 66,992,443.91, 100,464,884.99 and 19,655,760.80 is: 29,476,663.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,992,443.91 : 100,464,884.99 = 19,655,760.80 : x
  2. Step 2: Convert to fraction form
    66,992,443.91/100,464,884.99 = 19,655,760.80/x
  3. Step 3: Cross multiply
    66,992,443.91x = 100,464,884.99 × 19,655,760.80
  4. Step 4: Simplify right side
    66,992,443.91x = 1,974,713,748,315,833.50
  5. Step 5: Solve for x
    x = 1,974,713,748,315,833.50/66,992,443.91
  6. Step 6: Final answer
    x = 29,476,663.83

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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.