Home / 15,686,443.96-21,647,817.75-8,717,415.28

Finding the Fourth Proportional to 15,686,443.96, 21,647,817.75 and 8,717,415.28

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Solution

The fourth proportional to 15,686,443.96, 21,647,817.75 and 8,717,415.28 is: 12,030,324.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,686,443.96 : 21,647,817.75 = 8,717,415.28 : x
  2. Step 2: Convert to fraction form
    15,686,443.96/21,647,817.75 = 8,717,415.28/x
  3. Step 3: Cross multiply
    15,686,443.96x = 21,647,817.75 × 8,717,415.28
  4. Step 4: Simplify right side
    15,686,443.96x = 188,713,017,232,505.22
  5. Step 5: Solve for x
    x = 188,713,017,232,505.22/15,686,443.96
  6. Step 6: Final answer
    x = 12,030,324.89

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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.