Home / 31,789,815.80-47,684,723.70-7,855,287.80

Finding the Fourth Proportional to 31,789,815.80, 47,684,723.70 and 7,855,287.80

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Solution

The fourth proportional to 31,789,815.80, 47,684,723.70 and 7,855,287.80 is: 11,782,931.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,789,815.80 : 47,684,723.70 = 7,855,287.80 : x
  2. Step 2: Convert to fraction form
    31,789,815.80/47,684,723.70 = 7,855,287.80/x
  3. Step 3: Cross multiply
    31,789,815.80x = 47,684,723.70 × 7,855,287.80
  4. Step 4: Simplify right side
    31,789,815.80x = 374,577,228,326,980.88
  5. Step 5: Solve for x
    x = 374,577,228,326,980.88/31,789,815.80
  6. Step 6: Final answer
    x = 11,782,931.70

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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.