Home / 31,751,711.40-47,640,008.70-12,579,205.80

Finding the Fourth Proportional to 31,751,711.40, 47,640,008.70 and 12,579,205.80

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Solution

The fourth proportional to 31,751,711.40, 47,640,008.70 and 12,579,205.80 is: 18,873,737.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,751,711.40 : 47,640,008.70 = 12,579,205.80 : x
  2. Step 2: Convert to fraction form
    31,751,711.40/47,640,008.70 = 12,579,205.80/x
  3. Step 3: Cross multiply
    31,751,711.40x = 47,640,008.70 × 12,579,205.80
  4. Step 4: Simplify right side
    31,751,711.40x = 599,273,473,751,090.50
  5. Step 5: Solve for x
    x = 599,273,473,751,090.50/31,751,711.40
  6. Step 6: Final answer
    x = 18,873,737.74

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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.