Home / 20,883,864.85-28,819,299.23-11,590,889.76

Finding the Fourth Proportional to 20,883,864.85, 28,819,299.23 and 11,590,889.76

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Solution

The fourth proportional to 20,883,864.85, 28,819,299.23 and 11,590,889.76 is: 15,995,186.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883,864.85 : 28,819,299.23 = 11,590,889.76 : x
  2. Step 2: Convert to fraction form
    20,883,864.85/28,819,299.23 = 11,590,889.76/x
  3. Step 3: Cross multiply
    20,883,864.85x = 28,819,299.23 × 11,590,889.76
  4. Step 4: Simplify right side
    20,883,864.85x = 334,041,320,335,382.88
  5. Step 5: Solve for x
    x = 334,041,320,335,382.88/20,883,864.85
  6. Step 6: Final answer
    x = 15,995,186.85

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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.