Home / 31,437,658.52-47,153,786.36-19,138,429.56

Finding the Fourth Proportional to 31,437,658.52, 47,153,786.36 and 19,138,429.56

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Solution

The fourth proportional to 31,437,658.52, 47,153,786.36 and 19,138,429.56 is: 28,705,999.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,437,658.52 : 47,153,786.36 = 19,138,429.56 : x
  2. Step 2: Convert to fraction form
    31,437,658.52/47,153,786.36 = 19,138,429.56/x
  3. Step 3: Cross multiply
    31,437,658.52x = 47,153,786.36 × 19,138,429.56
  4. Step 4: Simplify right side
    31,437,658.52x = 902,449,418,661,697
  5. Step 5: Solve for x
    x = 902,449,418,661,697/31,437,658.52
  6. Step 6: Final answer
    x = 28,705,999.79

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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.