Home / 20,662,522.79-28,553,608.17-15,496,916.27

Finding the Fourth Proportional to 20,662,522.79, 28,553,608.17 and 15,496,916.27

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Solution

The fourth proportional to 20,662,522.79, 28,553,608.17 and 15,496,916.27 is: 21,415,239.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,662,522.79 : 28,553,608.17 = 15,496,916.27 : x
  2. Step 2: Convert to fraction form
    20,662,522.79/28,553,608.17 = 15,496,916.27/x
  3. Step 3: Cross multiply
    20,662,522.79x = 28,553,608.17 × 15,496,916.27
  4. Step 4: Simplify right side
    20,662,522.79x = 442,492,874,874,109.94
  5. Step 5: Solve for x
    x = 442,492,874,874,109.94/20,662,522.79
  6. Step 6: Final answer
    x = 21,415,239.54

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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.