Home / 21,212,712.03-31,806,045.60-8,243,719.57

Finding the Fourth Proportional to 21,212,712.03, 31,806,045.60 and 8,243,719.57

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Solution

The fourth proportional to 21,212,712.03, 31,806,045.60 and 8,243,719.57 is: 12,360,518.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,212,712.03 : 31,806,045.60 = 8,243,719.57 : x
  2. Step 2: Convert to fraction form
    21,212,712.03/31,806,045.60 = 8,243,719.57/x
  3. Step 3: Cross multiply
    21,212,712.03x = 31,806,045.60 × 8,243,719.57
  4. Step 4: Simplify right side
    21,212,712.03x = 262,200,120,456,527.50
  5. Step 5: Solve for x
    x = 262,200,120,456,527.50/21,212,712.03
  6. Step 6: Final answer
    x = 12,360,518.54

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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.