Home / 15,436,742.35-21,304,012.77-8,563,438.75

Finding the Fourth Proportional to 15,436,742.35, 21,304,012.77 and 8,563,438.75

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Solution

The fourth proportional to 15,436,742.35, 21,304,012.77 and 8,563,438.75 is: 11,818,271.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,436,742.35 : 21,304,012.77 = 8,563,438.75 : x
  2. Step 2: Convert to fraction form
    15,436,742.35/21,304,012.77 = 8,563,438.75/x
  3. Step 3: Cross multiply
    15,436,742.35x = 21,304,012.77 × 8,563,438.75
  4. Step 4: Simplify right side
    15,436,742.35x = 182,435,608,485,112.84
  5. Step 5: Solve for x
    x = 182,435,608,485,112.84/15,436,742.35
  6. Step 6: Final answer
    x = 11,818,271.26

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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.