Home / 10,709,723.10-16,040,965.05-5,655,128.70

Finding the Fourth Proportional to 10,709,723.10, 16,040,965.05 and 5,655,128.70

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Solution

The fourth proportional to 10,709,723.10, 16,040,965.05 and 5,655,128.70 is: 8,470,221.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,709,723.10 : 16,040,965.05 = 5,655,128.70 : x
  2. Step 2: Convert to fraction form
    10,709,723.10/16,040,965.05 = 5,655,128.70/x
  3. Step 3: Cross multiply
    10,709,723.10x = 16,040,965.05 × 5,655,128.70
  4. Step 4: Simplify right side
    10,709,723.10x = 90,713,721,829,951.94
  5. Step 5: Solve for x
    x = 90,713,721,829,951.94/10,709,723.10
  6. Step 6: Final answer
    x = 8,470,221.03

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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.