Home / 20,811,210.66-31,209,052.14-7,160,496.12

Finding the Fourth Proportional to 20,811,210.66, 31,209,052.14 and 7,160,496.12

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Solution

The fourth proportional to 20,811,210.66, 31,209,052.14 and 7,160,496.12 is: 10,738,072.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,811,210.66 : 31,209,052.14 = 7,160,496.12 : x
  2. Step 2: Convert to fraction form
    20,811,210.66/31,209,052.14 = 7,160,496.12/x
  3. Step 3: Cross multiply
    20,811,210.66x = 31,209,052.14 × 7,160,496.12
  4. Step 4: Simplify right side
    20,811,210.66x = 223,472,296,757,347.72
  5. Step 5: Solve for x
    x = 223,472,296,757,347.72/20,811,210.66
  6. Step 6: Final answer
    x = 10,738,072.88

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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.