Home / 21,893,121.29-30,211,208.91-12,102,981.63

Finding the Fourth Proportional to 21,893,121.29, 30,211,208.91 and 12,102,981.63

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Solution

The fourth proportional to 21,893,121.29, 30,211,208.91 and 12,102,981.63 is: 16,701,396.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,893,121.29 : 30,211,208.91 = 12,102,981.63 : x
  2. Step 2: Convert to fraction form
    21,893,121.29/30,211,208.91 = 12,102,981.63/x
  3. Step 3: Cross multiply
    21,893,121.29x = 30,211,208.91 × 12,102,981.63
  4. Step 4: Simplify right side
    21,893,121.29x = 365,645,706,457,822.38
  5. Step 5: Solve for x
    x = 365,645,706,457,822.38/21,893,121.29
  6. Step 6: Final answer
    x = 16,701,396.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.