Home / 15,344,139.69-21,174,808.59-8,468,621.73

Finding the Fourth Proportional to 15,344,139.69, 21,174,808.59 and 8,468,621.73

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Solution

The fourth proportional to 15,344,139.69, 21,174,808.59 and 8,468,621.73 is: 11,686,640.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,344,139.69 : 21,174,808.59 = 8,468,621.73 : x
  2. Step 2: Convert to fraction form
    15,344,139.69/21,174,808.59 = 8,468,621.73/x
  3. Step 3: Cross multiply
    15,344,139.69x = 21,174,808.59 × 8,468,621.73
  4. Step 4: Simplify right side
    15,344,139.69x = 179,321,444,153,864.66
  5. Step 5: Solve for x
    x = 179,321,444,153,864.66/15,344,139.69
  6. Step 6: Final answer
    x = 11,686,640.49

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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.