Home / 21,167,998.95-31,751,998.43-8,384,254.95

Finding the Fourth Proportional to 21,167,998.95, 31,751,998.43 and 8,384,254.95

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Solution

The fourth proportional to 21,167,998.95, 31,751,998.43 and 8,384,254.95 is: 12,576,382.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167,998.95 : 31,751,998.43 = 8,384,254.95 : x
  2. Step 2: Convert to fraction form
    21,167,998.95/31,751,998.43 = 8,384,254.95/x
  3. Step 3: Cross multiply
    21,167,998.95x = 31,751,998.43 × 8,384,254.95
  4. Step 4: Simplify right side
    21,167,998.95x = 266,216,849,967,198.47
  5. Step 5: Solve for x
    x = 266,216,849,967,198.47/21,167,998.95
  6. Step 6: Final answer
    x = 12,576,382.43

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Similar ratio
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1.5x scale

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.