Home / 21,010,971.24-31,521,584.81-8,056,890.52

Finding the Fourth Proportional to 21,010,971.24, 31,521,584.81 and 8,056,890.52

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Solution

The fourth proportional to 21,010,971.24, 31,521,584.81 and 8,056,890.52 is: 12,087,302.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,010,971.24 : 31,521,584.81 = 8,056,890.52 : x
  2. Step 2: Convert to fraction form
    21,010,971.24/31,521,584.81 = 8,056,890.52/x
  3. Step 3: Cross multiply
    21,010,971.24x = 31,521,584.81 × 8,056,890.52
  4. Step 4: Simplify right side
    21,010,971.24x = 253,965,957,772,403.28
  5. Step 5: Solve for x
    x = 253,965,957,772,403.28/21,010,971.24
  6. Step 6: Final answer
    x = 12,087,302.15

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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.