Home / 15,686,441.06-21,647,813.72-8,717,412.33

Finding the Fourth Proportional to 15,686,441.06, 21,647,813.72 and 8,717,412.33

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Solution

The fourth proportional to 15,686,441.06, 21,647,813.72 and 8,717,412.33 is: 12,030,320.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,686,441.06 : 21,647,813.72 = 8,717,412.33 : x
  2. Step 2: Convert to fraction form
    15,686,441.06/21,647,813.72 = 8,717,412.33/x
  3. Step 3: Cross multiply
    15,686,441.06x = 21,647,813.72 × 8,717,412.33
  4. Step 4: Simplify right side
    15,686,441.06x = 188,712,918,196,684.09
  5. Step 5: Solve for x
    x = 188,712,918,196,684.09/15,686,441.06
  6. Step 6: Final answer
    x = 12,030,320.81

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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.