Home / 20,331,083,983.72-28,048,192,773.38-12,696,876,243.88

Finding the Fourth Proportional to 20,331,083,983.72, 28,048,192,773.38 and 12,696,876,243.88

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Solution

The fourth proportional to 20,331,083,983.72, 28,048,192,773.38 and 12,696,876,243.88 is: 17,516,254,066.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,331,083,983.72 : 28,048,192,773.38 = 12,696,876,243.88 : x
  2. Step 2: Convert to fraction form
    20,331,083,983.72/28,048,192,773.38 = 12,696,876,243.88/x
  3. Step 3: Cross multiply
    20,331,083,983.72x = 28,048,192,773.38 × 12,696,876,243.88
  4. Step 4: Simplify right side
    20,331,083,983.72x = 356,124,432,508,095,234,048
  5. Step 5: Solve for x
    x = 356,124,432,508,095,234,048/20,331,083,983.72
  6. Step 6: Final answer
    x = 17,516,254,066.59

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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.