Home / 20,793,805.10-31,192,792.05-7,145,153.90

Finding the Fourth Proportional to 20,793,805.10, 31,192,792.05 and 7,145,153.90

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Solution

The fourth proportional to 20,793,805.10, 31,192,792.05 and 7,145,153.90 is: 10,718,447.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793,805.10 : 31,192,792.05 = 7,145,153.90 : x
  2. Step 2: Convert to fraction form
    20,793,805.10/31,192,792.05 = 7,145,153.90/x
  3. Step 3: Cross multiply
    20,793,805.10x = 31,192,792.05 × 7,145,153.90
  4. Step 4: Simplify right side
    20,793,805.10x = 222,877,299,767,946.50
  5. Step 5: Solve for x
    x = 222,877,299,767,946.50/20,793,805.10
  6. Step 6: Final answer
    x = 10,718,447.09

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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.