Home / 15,028,890.21-20,739,908.69-8,153,372.27

Finding the Fourth Proportional to 15,028,890.21, 20,739,908.69 and 8,153,372.27

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Solution

The fourth proportional to 15,028,890.21, 20,739,908.69 and 8,153,372.27 is: 11,251,675.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,028,890.21 : 20,739,908.69 = 8,153,372.27 : x
  2. Step 2: Convert to fraction form
    15,028,890.21/20,739,908.69 = 8,153,372.27/x
  3. Step 3: Cross multiply
    15,028,890.21x = 20,739,908.69 × 8,153,372.27
  4. Step 4: Simplify right side
    15,028,890.21x = 169,100,196,406,460.94
  5. Step 5: Solve for x
    x = 169,100,196,406,460.94/15,028,890.21
  6. Step 6: Final answer
    x = 11,251,675.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.