Home / 15,338,479.36-21,167,776.56-8,814,152.56

Finding the Fourth Proportional to 15,338,479.36, 21,167,776.56 and 8,814,152.56

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Solution

The fourth proportional to 15,338,479.36, 21,167,776.56 and 8,814,152.56 is: 12,163,918.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338,479.36 : 21,167,776.56 = 8,814,152.56 : x
  2. Step 2: Convert to fraction form
    15,338,479.36/21,167,776.56 = 8,814,152.56/x
  3. Step 3: Cross multiply
    15,338,479.36x = 21,167,776.56 × 8,814,152.56
  4. Step 4: Simplify right side
    15,338,479.36x = 186,576,011,955,832
  5. Step 5: Solve for x
    x = 186,576,011,955,832/15,338,479.36
  6. Step 6: Final answer
    x = 12,163,918.44

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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.