Home / 31,261,622.94-43,125,168.36-21,331,057.35

Finding the Fourth Proportional to 31,261,622.94, 43,125,168.36 and 21,331,057.35

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Solution

The fourth proportional to 31,261,622.94, 43,125,168.36 and 21,331,057.35 is: 29,426,029.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,261,622.94 : 43,125,168.36 = 21,331,057.35 : x
  2. Step 2: Convert to fraction form
    31,261,622.94/43,125,168.36 = 21,331,057.35/x
  3. Step 3: Cross multiply
    31,261,622.94x = 43,125,168.36 × 21,331,057.35
  4. Step 4: Simplify right side
    31,261,622.94x = 919,905,439,515,565.50
  5. Step 5: Solve for x
    x = 919,905,439,515,565.50/31,261,622.94
  6. Step 6: Final answer
    x = 29,426,029.52

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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.