Home / 20,783,392.52-28,680,586.04-11,616,888.20

Finding the Fourth Proportional to 20,783,392.52, 28,680,586.04 and 11,616,888.20

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Solution

The fourth proportional to 20,783,392.52, 28,680,586.04 and 11,616,888.20 is: 16,031,028.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,783,392.52 : 28,680,586.04 = 11,616,888.20 : x
  2. Step 2: Convert to fraction form
    20,783,392.52/28,680,586.04 = 11,616,888.20/x
  3. Step 3: Cross multiply
    20,783,392.52x = 28,680,586.04 × 11,616,888.20
  4. Step 4: Simplify right side
    20,783,392.52x = 333,179,161,537,160.69
  5. Step 5: Solve for x
    x = 333,179,161,537,160.69/20,783,392.52
  6. Step 6: Final answer
    x = 16,031,028.68

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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.