Home / 31,378,056.41-47,040,128.08-10,905,116.11

Finding the Fourth Proportional to 31,378,056.41, 47,040,128.08 and 10,905,116.11

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Solution

The fourth proportional to 31,378,056.41, 47,040,128.08 and 10,905,116.11 is: 16,348,305.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,378,056.41 : 47,040,128.08 = 10,905,116.11 : x
  2. Step 2: Convert to fraction form
    31,378,056.41/47,040,128.08 = 10,905,116.11/x
  3. Step 3: Cross multiply
    31,378,056.41x = 47,040,128.08 × 10,905,116.11
  4. Step 4: Simplify right side
    31,378,056.41x = 512,978,058,306,470.75
  5. Step 5: Solve for x
    x = 512,978,058,306,470.75/31,378,056.41
  6. Step 6: Final answer
    x = 16,348,305.70

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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.