Home / 13,172,046.60-19,745,628.30-7,784,833.80

Finding the Fourth Proportional to 13,172,046.60, 19,745,628.30 and 7,784,833.80

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Solution

The fourth proportional to 13,172,046.60, 19,745,628.30 and 7,784,833.80 is: 11,669,897.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172,046.60 : 19,745,628.30 = 7,784,833.80 : x
  2. Step 2: Convert to fraction form
    13,172,046.60/19,745,628.30 = 7,784,833.80/x
  3. Step 3: Cross multiply
    13,172,046.60x = 19,745,628.30 × 7,784,833.80
  4. Step 4: Simplify right side
    13,172,046.60x = 153,716,434,592,076.53
  5. Step 5: Solve for x
    x = 153,716,434,592,076.53/13,172,046.60
  6. Step 6: Final answer
    x = 11,669,897.57

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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.