Home / 20,819,801.12-28,732,223.58-11,527,371.43

Finding the Fourth Proportional to 20,819,801.12, 28,732,223.58 and 11,527,371.43

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Solution

The fourth proportional to 20,819,801.12, 28,732,223.58 and 11,527,371.43 is: 15,908,269.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,819,801.12 : 28,732,223.58 = 11,527,371.43 : x
  2. Step 2: Convert to fraction form
    20,819,801.12/28,732,223.58 = 11,527,371.43/x
  3. Step 3: Cross multiply
    20,819,801.12x = 28,732,223.58 × 11,527,371.43
  4. Step 4: Simplify right side
    20,819,801.12x = 331,207,013,101,406.12
  5. Step 5: Solve for x
    x = 331,207,013,101,406.12/20,819,801.12
  6. Step 6: Final answer
    x = 15,908,269.79

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1.5x scale

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.