Home / 20,154,466.89-30,226,718.01-8,638,628.26

Finding the Fourth Proportional to 20,154,466.89, 30,226,718.01 and 8,638,628.26

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Solution

The fourth proportional to 20,154,466.89, 30,226,718.01 and 8,638,628.26 is: 12,955,806.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154,466.89 : 30,226,718.01 = 8,638,628.26 : x
  2. Step 2: Convert to fraction form
    20,154,466.89/30,226,718.01 = 8,638,628.26/x
  3. Step 3: Cross multiply
    20,154,466.89x = 30,226,718.01 × 8,638,628.26
  4. Step 4: Simplify right side
    20,154,466.89x = 261,117,380,465,758.66
  5. Step 5: Solve for x
    x = 261,117,380,465,758.66/20,154,466.89
  6. Step 6: Final answer
    x = 12,955,806.87

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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.