Home / 12,791,052.66-17,653,452.93-8,143,352.94

Finding the Fourth Proportional to 12,791,052.66, 17,653,452.93 and 8,143,352.94

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Solution

The fourth proportional to 12,791,052.66, 17,653,452.93 and 8,143,352.94 is: 11,238,973.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791,052.66 : 17,653,452.93 = 8,143,352.94 : x
  2. Step 2: Convert to fraction form
    12,791,052.66/17,653,452.93 = 8,143,352.94/x
  3. Step 3: Cross multiply
    12,791,052.66x = 17,653,452.93 × 8,143,352.94
  4. Step 4: Simplify right side
    12,791,052.66x = 143,758,297,818,667.12
  5. Step 5: Solve for x
    x = 143,758,297,818,667.12/12,791,052.66
  6. Step 6: Final answer
    x = 11,238,973.18

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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.