Home / 31,448,471.88-47,172,971.82-8,731,140.68

Finding the Fourth Proportional to 31,448,471.88, 47,172,971.82 and 8,731,140.68

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Solution

The fourth proportional to 31,448,471.88, 47,172,971.82 and 8,731,140.68 is: 13,096,784.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,448,471.88 : 47,172,971.82 = 8,731,140.68 : x
  2. Step 2: Convert to fraction form
    31,448,471.88/47,172,971.82 = 8,731,140.68/x
  3. Step 3: Cross multiply
    31,448,471.88x = 47,172,971.82 × 8,731,140.68
  4. Step 4: Simplify right side
    31,448,471.88x = 411,873,853,254,095.62
  5. Step 5: Solve for x
    x = 411,873,853,254,095.62/31,448,471.88
  6. Step 6: Final answer
    x = 13,096,784.32

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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.