Home / 20,659,528.08-31,008,707.64-10,818,654.96

Finding the Fourth Proportional to 20,659,528.08, 31,008,707.64 and 10,818,654.96

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Solution

The fourth proportional to 20,659,528.08, 31,008,707.64 and 10,818,654.96 is: 16,238,149.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,659,528.08 : 31,008,707.64 = 10,818,654.96 : x
  2. Step 2: Convert to fraction form
    20,659,528.08/31,008,707.64 = 10,818,654.96/x
  3. Step 3: Cross multiply
    20,659,528.08x = 31,008,707.64 × 10,818,654.96
  4. Step 4: Simplify right side
    20,659,528.08x = 335,472,508,712,675.94
  5. Step 5: Solve for x
    x = 335,472,508,712,675.94/20,659,528.08
  6. Step 6: Final answer
    x = 16,238,149.65

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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.