Home / 21,090,195.86-31,604,343.46-11,886,086.67

Finding the Fourth Proportional to 21,090,195.86, 31,604,343.46 and 11,886,086.67

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Solution

The fourth proportional to 21,090,195.86, 31,604,343.46 and 11,886,086.67 is: 17,811,686.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,090,195.86 : 31,604,343.46 = 11,886,086.67 : x
  2. Step 2: Convert to fraction form
    21,090,195.86/31,604,343.46 = 11,886,086.67/x
  3. Step 3: Cross multiply
    21,090,195.86x = 31,604,343.46 × 11,886,086.67
  4. Step 4: Simplify right side
    21,090,195.86x = 375,651,965,330,350.19
  5. Step 5: Solve for x
    x = 375,651,965,330,350.19/21,090,195.86
  6. Step 6: Final answer
    x = 17,811,686.90

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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.