Home / 20,564,180.87-30,662,422.09-19,999,192.66

Finding the Fourth Proportional to 20,564,180.87, 30,662,422.09 and 19,999,192.66

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Solution

The fourth proportional to 20,564,180.87, 30,662,422.09 and 19,999,192.66 is: 29,819,990.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,564,180.87 : 30,662,422.09 = 19,999,192.66 : x
  2. Step 2: Convert to fraction form
    20,564,180.87/30,662,422.09 = 19,999,192.66/x
  3. Step 3: Cross multiply
    20,564,180.87x = 30,662,422.09 × 19,999,192.66
  4. Step 4: Simplify right side
    20,564,180.87x = 613,223,686,785,991.25
  5. Step 5: Solve for x
    x = 613,223,686,785,991.25/20,564,180.87
  6. Step 6: Final answer
    x = 29,819,990.92

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.