Home / 21,778,528.20-32,683,538.70-12,183,721.80

Finding the Fourth Proportional to 21,778,528.20, 32,683,538.70 and 12,183,721.80

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Solution

The fourth proportional to 21,778,528.20, 32,683,538.70 and 12,183,721.80 is: 18,284,391.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,778,528.20 : 32,683,538.70 = 12,183,721.80 : x
  2. Step 2: Convert to fraction form
    21,778,528.20/32,683,538.70 = 12,183,721.80/x
  3. Step 3: Cross multiply
    21,778,528.20x = 32,683,538.70 × 12,183,721.80
  4. Step 4: Simplify right side
    21,778,528.20x = 398,207,142,960,333.69
  5. Step 5: Solve for x
    x = 398,207,142,960,333.69/21,778,528.20
  6. Step 6: Final answer
    x = 18,284,391.82

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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.