Home / 20,564,185.49-30,662,428.96-19,999,197.28

Finding the Fourth Proportional to 20,564,185.49, 30,662,428.96 and 19,999,197.28

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Solution

The fourth proportional to 20,564,185.49, 30,662,428.96 and 19,999,197.28 is: 29,819,997.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,564,185.49 : 30,662,428.96 = 19,999,197.28 : x
  2. Step 2: Convert to fraction form
    20,564,185.49/30,662,428.96 = 19,999,197.28/x
  3. Step 3: Cross multiply
    20,564,185.49x = 30,662,428.96 × 19,999,197.28
  4. Step 4: Simplify right side
    20,564,185.49x = 613,223,965,855,025.25
  5. Step 5: Solve for x
    x = 613,223,965,855,025.25/20,564,185.49
  6. Step 6: Final answer
    x = 29,819,997.79

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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.