Home / 20,564,185.37-30,662,428.80-19,999,197.17

Finding the Fourth Proportional to 20,564,185.37, 30,662,428.80 and 19,999,197.17

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Solution

The fourth proportional to 20,564,185.37, 30,662,428.80 and 19,999,197.17 is: 29,819,997.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,564,185.37 : 30,662,428.80 = 19,999,197.17 : x
  2. Step 2: Convert to fraction form
    20,564,185.37/30,662,428.80 = 19,999,197.17/x
  3. Step 3: Cross multiply
    20,564,185.37x = 30,662,428.80 × 19,999,197.17
  4. Step 4: Simplify right side
    20,564,185.37x = 613,223,959,128,974.38
  5. Step 5: Solve for x
    x = 613,223,959,128,974.38/20,564,185.37
  6. Step 6: Final answer
    x = 29,819,997.64

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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.