Home / 20,928,532.50-28,881,710.73-11,509,695.75

Finding the Fourth Proportional to 20,928,532.50, 28,881,710.73 and 11,509,695.75

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Solution

The fourth proportional to 20,928,532.50, 28,881,710.73 and 11,509,695.75 is: 15,883,564.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,928,532.50 : 28,881,710.73 = 11,509,695.75 : x
  2. Step 2: Convert to fraction form
    20,928,532.50/28,881,710.73 = 11,509,695.75/x
  3. Step 3: Cross multiply
    20,928,532.50x = 28,881,710.73 × 11,509,695.75
  4. Step 4: Simplify right side
    20,928,532.50x = 332,419,703,241,810.38
  5. Step 5: Solve for x
    x = 332,419,703,241,810.38/20,928,532.50
  6. Step 6: Final answer
    x = 15,883,564.85

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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.