Home / 82,007,266.80-123,012,212.40-21,422,992.80

Finding the Fourth Proportional to 82,007,266.80, 123,012,212.40 and 21,422,992.80

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Solution

The fourth proportional to 82,007,266.80, 123,012,212.40 and 21,422,992.80 is: 32,134,831.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,007,266.80 : 123,012,212.40 = 21,422,992.80 : x
  2. Step 2: Convert to fraction form
    82,007,266.80/123,012,212.40 = 21,422,992.80/x
  3. Step 3: Cross multiply
    82,007,266.80x = 123,012,212.40 × 21,422,992.80
  4. Step 4: Simplify right side
    82,007,266.80x = 2,635,289,740,557,271
  5. Step 5: Solve for x
    x = 2,635,289,740,557,271/82,007,266.80
  6. Step 6: Final answer
    x = 32,134,831.99

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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.