Home / 12,928,721.67-17,841,773.34-7,127,711.19

Finding the Fourth Proportional to 12,928,721.67, 17,841,773.34 and 7,127,711.19

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Solution

The fourth proportional to 12,928,721.67, 17,841,773.34 and 7,127,711.19 is: 9,836,317.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928,721.67 : 17,841,773.34 = 7,127,711.19 : x
  2. Step 2: Convert to fraction form
    12,928,721.67/17,841,773.34 = 7,127,711.19/x
  3. Step 3: Cross multiply
    12,928,721.67x = 17,841,773.34 × 7,127,711.19
  4. Step 4: Simplify right side
    12,928,721.67x = 127,171,007,484,961.69
  5. Step 5: Solve for x
    x = 127,171,007,484,961.69/12,928,721.67
  6. Step 6: Final answer
    x = 9,836,317.21

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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.