Home / 31,890,840.76-47,843,863.80-10,325,448.82

Finding the Fourth Proportional to 31,890,840.76, 47,843,863.80 and 10,325,448.82

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Solution

The fourth proportional to 31,890,840.76, 47,843,863.80 and 10,325,448.82 is: 15,490,634.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,890,840.76 : 47,843,863.80 = 10,325,448.82 : x
  2. Step 2: Convert to fraction form
    31,890,840.76/47,843,863.80 = 10,325,448.82/x
  3. Step 3: Cross multiply
    31,890,840.76x = 47,843,863.80 × 10,325,448.82
  4. Step 4: Simplify right side
    31,890,840.76x = 494,009,367,017,950.69
  5. Step 5: Solve for x
    x = 494,009,367,017,950.69/31,890,840.76
  6. Step 6: Final answer
    x = 15,490,634.78

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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.