Home / 21,072,321.90-31,632,102.45-16,301,162.70

Finding the Fourth Proportional to 21,072,321.90, 31,632,102.45 and 16,301,162.70

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Solution

The fourth proportional to 21,072,321.90, 31,632,102.45 and 16,301,162.70 is: 24,470,015.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,072,321.90 : 31,632,102.45 = 16,301,162.70 : x
  2. Step 2: Convert to fraction form
    21,072,321.90/31,632,102.45 = 16,301,162.70/x
  3. Step 3: Cross multiply
    21,072,321.90x = 31,632,102.45 × 16,301,162.70
  4. Step 4: Simplify right side
    21,072,321.90x = 515,640,048,580,518.56
  5. Step 5: Solve for x
    x = 515,640,048,580,518.56/21,072,321.90
  6. Step 6: Final answer
    x = 24,470,015.74

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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.