Home / 13,721,595.40-18,935,519.34-8,493,217.12

Finding the Fourth Proportional to 13,721,595.40, 18,935,519.34 and 8,493,217.12

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Solution

The fourth proportional to 13,721,595.40, 18,935,519.34 and 8,493,217.12 is: 11,720,464.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721,595.40 : 18,935,519.34 = 8,493,217.12 : x
  2. Step 2: Convert to fraction form
    13,721,595.40/18,935,519.34 = 8,493,217.12/x
  3. Step 3: Cross multiply
    13,721,595.40x = 18,935,519.34 × 8,493,217.12
  4. Step 4: Simplify right side
    13,721,595.40x = 160,823,477,034,579.09
  5. Step 5: Solve for x
    x = 160,823,477,034,579.09/13,721,595.40
  6. Step 6: Final answer
    x = 11,720,464.88

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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.