Home / 13,022,171.40-17,970,926.49-7,142,039.69

Finding the Fourth Proportional to 13,022,171.40, 17,970,926.49 and 7,142,039.69

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Solution

The fourth proportional to 13,022,171.40, 17,970,926.49 and 7,142,039.69 is: 9,856,195.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,022,171.40 : 17,970,926.49 = 7,142,039.69 : x
  2. Step 2: Convert to fraction form
    13,022,171.40/17,970,926.49 = 7,142,039.69/x
  3. Step 3: Cross multiply
    13,022,171.40x = 17,970,926.49 × 7,142,039.69
  4. Step 4: Simplify right side
    13,022,171.40x = 128,349,070,221,942.19
  5. Step 5: Solve for x
    x = 128,349,070,221,942.19/13,022,171.40
  6. Step 6: Final answer
    x = 9,856,195.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.