Home / 20,769,772.32-31,161,579.93-13,084,544.70

Finding the Fourth Proportional to 20,769,772.32, 31,161,579.93 and 13,084,544.70

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Solution

The fourth proportional to 20,769,772.32, 31,161,579.93 and 13,084,544.70 is: 19,631,177.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,769,772.32 : 31,161,579.93 = 13,084,544.70 : x
  2. Step 2: Convert to fraction form
    20,769,772.32/31,161,579.93 = 13,084,544.70/x
  3. Step 3: Cross multiply
    20,769,772.32x = 31,161,579.93 × 13,084,544.70
  4. Step 4: Simplify right side
    20,769,772.32x = 407,735,085,516,707.88
  5. Step 5: Solve for x
    x = 407,735,085,516,707.88/20,769,772.32
  6. Step 6: Final answer
    x = 19,631,177.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.