Home / 20,885,671.53-31,328,464.21-11,783,637.24

Finding the Fourth Proportional to 20,885,671.53, 31,328,464.21 and 11,783,637.24

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Solution

The fourth proportional to 20,885,671.53, 31,328,464.21 and 11,783,637.24 is: 17,675,431.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885,671.53 : 31,328,464.21 = 11,783,637.24 : x
  2. Step 2: Convert to fraction form
    20,885,671.53/31,328,464.21 = 11,783,637.24/x
  3. Step 3: Cross multiply
    20,885,671.53x = 31,328,464.21 × 11,783,637.24
  4. Step 4: Simplify right side
    20,885,671.53x = 369,163,257,536,963.19
  5. Step 5: Solve for x
    x = 369,163,257,536,963.19/20,885,671.53
  6. Step 6: Final answer
    x = 17,675,431.55

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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.