Home / 20,564,310.90-30,662,616.13-19,999,322.70

Finding the Fourth Proportional to 20,564,310.90, 30,662,616.13 and 19,999,322.70

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Solution

The fourth proportional to 20,564,310.90, 30,662,616.13 and 19,999,322.70 is: 29,820,184.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,564,310.90 : 30,662,616.13 = 19,999,322.70 : x
  2. Step 2: Convert to fraction form
    20,564,310.90/30,662,616.13 = 19,999,322.70/x
  3. Step 3: Cross multiply
    20,564,310.90x = 30,662,616.13 × 19,999,322.70
  4. Step 4: Simplify right side
    20,564,310.90x = 613,231,554,645,112
  5. Step 5: Solve for x
    x = 613,231,554,645,112/20,564,310.90
  6. Step 6: Final answer
    x = 29,820,184.96

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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.