Home / 22,378,792.70-30,882,688.62-12,589,243.76

Finding the Fourth Proportional to 22,378,792.70, 30,882,688.62 and 12,589,243.76

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Solution

The fourth proportional to 22,378,792.70, 30,882,688.62 and 12,589,243.76 is: 17,373,130.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,378,792.70 : 30,882,688.62 = 12,589,243.76 : x
  2. Step 2: Convert to fraction form
    22,378,792.70/30,882,688.62 = 12,589,243.76/x
  3. Step 3: Cross multiply
    22,378,792.70x = 30,882,688.62 × 12,589,243.76
  4. Step 4: Simplify right side
    22,378,792.70x = 388,789,695,001,358
  5. Step 5: Solve for x
    x = 388,789,695,001,358/22,378,792.70
  6. Step 6: Final answer
    x = 17,373,130.90

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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.