Home / 15,545,521.28-21,452,857.44-8,670,448.64

Finding the Fourth Proportional to 15,545,521.28, 21,452,857.44 and 8,670,448.64

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Solution

The fourth proportional to 15,545,521.28, 21,452,857.44 and 8,670,448.64 is: 11,965,240.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,545,521.28 : 21,452,857.44 = 8,670,448.64 : x
  2. Step 2: Convert to fraction form
    15,545,521.28/21,452,857.44 = 8,670,448.64/x
  3. Step 3: Cross multiply
    15,545,521.28x = 21,452,857.44 × 8,670,448.64
  4. Step 4: Simplify right side
    15,545,521.28x = 186,005,898,614,761.91
  5. Step 5: Solve for x
    x = 186,005,898,614,761.91/15,545,521.28
  6. Step 6: Final answer
    x = 11,965,240.36

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Double scale
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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.