Home / 20,864,743.17-28,760,087.79-16,447,269.81

Finding the Fourth Proportional to 20,864,743.17, 28,760,087.79 and 16,447,269.81

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Solution

The fourth proportional to 20,864,743.17, 28,760,087.79 and 16,447,269.81 is: 22,671,015.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,864,743.17 : 28,760,087.79 = 16,447,269.81 : x
  2. Step 2: Convert to fraction form
    20,864,743.17/28,760,087.79 = 16,447,269.81/x
  3. Step 3: Cross multiply
    20,864,743.17x = 28,760,087.79 × 16,447,269.81
  4. Step 4: Simplify right side
    20,864,743.17x = 473,024,923,641,416.62
  5. Step 5: Solve for x
    x = 473,024,923,641,416.62/20,864,743.17
  6. Step 6: Final answer
    x = 22,671,015.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.