Home / 20,331,083,982.72-28,048,192,772-12,696,876,242.88

Finding the Fourth Proportional to 20,331,083,982.72, 28,048,192,772 and 12,696,876,242.88

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Solution

The fourth proportional to 20,331,083,982.72, 28,048,192,772 and 12,696,876,242.88 is: 17,516,254,065.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,331,083,982.72 : 28,048,192,772 = 12,696,876,242.88 : x
  2. Step 2: Convert to fraction form
    20,331,083,982.72/28,048,192,772 = 12,696,876,242.88/x
  3. Step 3: Cross multiply
    20,331,083,982.72x = 28,048,192,772 × 12,696,876,242.88
  4. Step 4: Simplify right side
    20,331,083,982.72x = 356,124,432,462,525,300,736
  5. Step 5: Solve for x
    x = 356,124,432,462,525,300,736/20,331,083,982.72
  6. Step 6: Final answer
    x = 17,516,254,065.21

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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.