Home / 12,839,590.45-17,716,742.60-7,807,772.97

Finding the Fourth Proportional to 12,839,590.45, 17,716,742.60 and 7,807,772.97

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Solution

The fourth proportional to 12,839,590.45, 17,716,742.60 and 7,807,772.97 is: 10,773,576.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,839,590.45 : 17,716,742.60 = 7,807,772.97 : x
  2. Step 2: Convert to fraction form
    12,839,590.45/17,716,742.60 = 7,807,772.97/x
  3. Step 3: Cross multiply
    12,839,590.45x = 17,716,742.60 × 7,807,772.97
  4. Step 4: Simplify right side
    12,839,590.45x = 138,328,303,944,435.69
  5. Step 5: Solve for x
    x = 138,328,303,944,435.69/12,839,590.45
  6. Step 6: Final answer
    x = 10,773,576.04

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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.