Home / 23,123,148.60-31,911,904.62-12,813,105.72

Finding the Fourth Proportional to 23,123,148.60, 31,911,904.62 and 12,813,105.72

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Solution

The fourth proportional to 23,123,148.60, 31,911,904.62 and 12,813,105.72 is: 17,683,171.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,123,148.60 : 31,911,904.62 = 12,813,105.72 : x
  2. Step 2: Convert to fraction form
    23,123,148.60/31,911,904.62 = 12,813,105.72/x
  3. Step 3: Cross multiply
    23,123,148.60x = 31,911,904.62 × 12,813,105.72
  4. Step 4: Simplify right side
    23,123,148.60x = 408,890,607,622,616.44
  5. Step 5: Solve for x
    x = 408,890,607,622,616.44/23,123,148.60
  6. Step 6: Final answer
    x = 17,683,171.73

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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.