Home / 20,732,579.80-31,098,869.70-20,413,715.20

Finding the Fourth Proportional to 20,732,579.80, 31,098,869.70 and 20,413,715.20

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Solution

The fourth proportional to 20,732,579.80, 31,098,869.70 and 20,413,715.20 is: 30,620,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732,579.80 : 31,098,869.70 = 20,413,715.20 : x
  2. Step 2: Convert to fraction form
    20,732,579.80/31,098,869.70 = 20,413,715.20/x
  3. Step 3: Cross multiply
    20,732,579.80x = 31,098,869.70 × 20,413,715.20
  4. Step 4: Simplify right side
    20,732,579.80x = 634,843,469,097,709.38
  5. Step 5: Solve for x
    x = 634,843,469,097,709.38/20,732,579.80
  6. Step 6: Final answer
    x = 30,620,572.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.