Home / 20,724,149.10-31,088,556.45-6,347,102.70

Finding the Fourth Proportional to 20,724,149.10, 31,088,556.45 and 6,347,102.70

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Solution

The fourth proportional to 20,724,149.10, 31,088,556.45 and 6,347,102.70 is: 9,521,368.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724,149.10 : 31,088,556.45 = 6,347,102.70 : x
  2. Step 2: Convert to fraction form
    20,724,149.10/31,088,556.45 = 6,347,102.70/x
  3. Step 3: Cross multiply
    20,724,149.10x = 31,088,556.45 × 6,347,102.70
  4. Step 4: Simplify right side
    20,724,149.10x = 197,322,260,582,897.41
  5. Step 5: Solve for x
    x = 197,322,260,582,897.41/20,724,149.10
  6. Step 6: Final answer
    x = 9,521,368.51

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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.