Home / 20,919,090.11-31,360,661.60-7,270,462.94

Finding the Fourth Proportional to 20,919,090.11, 31,360,661.60 and 7,270,462.94

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Solution

The fourth proportional to 20,919,090.11, 31,360,661.60 and 7,270,462.94 is: 10,899,447.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,919,090.11 : 31,360,661.60 = 7,270,462.94 : x
  2. Step 2: Convert to fraction form
    20,919,090.11/31,360,661.60 = 7,270,462.94/x
  3. Step 3: Cross multiply
    20,919,090.11x = 31,360,661.60 × 7,270,462.94
  4. Step 4: Simplify right side
    20,919,090.11x = 228,006,527,743,525.47
  5. Step 5: Solve for x
    x = 228,006,527,743,525.47/20,919,090.11
  6. Step 6: Final answer
    x = 10,899,447.66

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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.