Home / 22,573,211.40-31,149,989.80-12,783,725.78

Finding the Fourth Proportional to 22,573,211.40, 31,149,989.80 and 12,783,725.78

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Solution

The fourth proportional to 22,573,211.40, 31,149,989.80 and 12,783,725.78 is: 17,640,951.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,573,211.40 : 31,149,989.80 = 12,783,725.78 : x
  2. Step 2: Convert to fraction form
    22,573,211.40/31,149,989.80 = 12,783,725.78/x
  3. Step 3: Cross multiply
    22,573,211.40x = 31,149,989.80 × 12,783,725.78
  4. Step 4: Simplify right side
    22,573,211.40x = 398,212,927,501,261.19
  5. Step 5: Solve for x
    x = 398,212,927,501,261.19/22,573,211.40
  6. Step 6: Final answer
    x = 17,640,951.50

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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.