Home / 21,276,775.92-31,919,647.56-6,898,722.55

Finding the Fourth Proportional to 21,276,775.92, 31,919,647.56 and 6,898,722.55

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Solution

The fourth proportional to 21,276,775.92, 31,919,647.56 and 6,898,722.55 is: 10,349,537.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276,775.92 : 31,919,647.56 = 6,898,722.55 : x
  2. Step 2: Convert to fraction form
    21,276,775.92/31,919,647.56 = 6,898,722.55/x
  3. Step 3: Cross multiply
    21,276,775.92x = 31,919,647.56 × 6,898,722.55
  4. Step 4: Simplify right side
    21,276,775.92x = 220,204,792,410,224.47
  5. Step 5: Solve for x
    x = 220,204,792,410,224.47/21,276,775.92
  6. Step 6: Final answer
    x = 10,349,537.60

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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.