Home / 13,557,739.51-18,715,406.24-9,153,431.71

Finding the Fourth Proportional to 13,557,739.51, 18,715,406.24 and 9,153,431.71

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Solution

The fourth proportional to 13,557,739.51, 18,715,406.24 and 9,153,431.71 is: 12,635,601.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557,739.51 : 18,715,406.24 = 9,153,431.71 : x
  2. Step 2: Convert to fraction form
    13,557,739.51/18,715,406.24 = 9,153,431.71/x
  3. Step 3: Cross multiply
    13,557,739.51x = 18,715,406.24 × 9,153,431.71
  4. Step 4: Simplify right side
    13,557,739.51x = 171,310,192,942,747.88
  5. Step 5: Solve for x
    x = 171,310,192,942,747.88/13,557,739.51
  6. Step 6: Final answer
    x = 12,635,601.44

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1.5x scale

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.