Home / 23,123,149.35-31,911,905.66-12,813,106.47

Finding the Fourth Proportional to 23,123,149.35, 31,911,905.66 and 12,813,106.47

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Solution

The fourth proportional to 23,123,149.35, 31,911,905.66 and 12,813,106.47 is: 17,683,172.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,123,149.35 : 31,911,905.66 = 12,813,106.47 : x
  2. Step 2: Convert to fraction form
    23,123,149.35/31,911,905.66 = 12,813,106.47/x
  3. Step 3: Cross multiply
    23,123,149.35x = 31,911,905.66 × 12,813,106.47
  4. Step 4: Simplify right side
    23,123,149.35x = 408,890,644,882,175.62
  5. Step 5: Solve for x
    x = 408,890,644,882,175.62/23,123,149.35
  6. Step 6: Final answer
    x = 17,683,172.77

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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.