Home / 31,930,322.40-47,901,704.40-12,757,816.80

Finding the Fourth Proportional to 31,930,322.40, 47,901,704.40 and 12,757,816.80

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Solution

The fourth proportional to 31,930,322.40, 47,901,704.40 and 12,757,816.80 is: 19,139,210.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,930,322.40 : 47,901,704.40 = 12,757,816.80 : x
  2. Step 2: Convert to fraction form
    31,930,322.40/47,901,704.40 = 12,757,816.80/x
  3. Step 3: Cross multiply
    31,930,322.40x = 47,901,704.40 × 12,757,816.80
  4. Step 4: Simplify right side
    31,930,322.40x = 611,121,169,142,953.88
  5. Step 5: Solve for x
    x = 611,121,169,142,953.88/31,930,322.40
  6. Step 6: Final answer
    x = 19,139,210.73

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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.