Home / 21,353,471.70-29,467,636.91-11,563,688.78

Finding the Fourth Proportional to 21,353,471.70, 29,467,636.91 and 11,563,688.78

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Solution

The fourth proportional to 21,353,471.70, 29,467,636.91 and 11,563,688.78 is: 15,957,807.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,353,471.70 : 29,467,636.91 = 11,563,688.78 : x
  2. Step 2: Convert to fraction form
    21,353,471.70/29,467,636.91 = 11,563,688.78/x
  3. Step 3: Cross multiply
    21,353,471.70x = 29,467,636.91 × 11,563,688.78
  4. Step 4: Simplify right side
    21,353,471.70x = 340,754,582,161,942.69
  5. Step 5: Solve for x
    x = 340,754,582,161,942.69/21,353,471.70
  6. Step 6: Final answer
    x = 15,957,807.10

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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.