Home / 2,689,661.21-3,711,733.79-1,528,109.46

Finding the Fourth Proportional to 2,689,661.21, 3,711,733.79 and 1,528,109.46

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Solution

The fourth proportional to 2,689,661.21, 3,711,733.79 and 1,528,109.46 is: 2,108,791.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689,661.21 : 3,711,733.79 = 1,528,109.46 : x
  2. Step 2: Convert to fraction form
    2,689,661.21/3,711,733.79 = 1,528,109.46/x
  3. Step 3: Cross multiply
    2,689,661.21x = 3,711,733.79 × 1,528,109.46
  4. Step 4: Simplify right side
    2,689,661.21x = 5,671,935,509,860.11
  5. Step 5: Solve for x
    x = 5,671,935,509,860.11/2,689,661.21
  6. Step 6: Final answer
    x = 2,108,791.81

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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.