Home / 28,636,133.28-39,517,870.36-15,759,077.28

Finding the Fourth Proportional to 28,636,133.28, 39,517,870.36 and 15,759,077.28

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Solution

The fourth proportional to 28,636,133.28, 39,517,870.36 and 15,759,077.28 is: 21,747,530.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,636,133.28 : 39,517,870.36 = 15,759,077.28 : x
  2. Step 2: Convert to fraction form
    28,636,133.28/39,517,870.36 = 15,759,077.28/x
  3. Step 3: Cross multiply
    28,636,133.28x = 39,517,870.36 × 15,759,077.28
  4. Step 4: Simplify right side
    28,636,133.28x = 622,765,172,944,261.38
  5. Step 5: Solve for x
    x = 622,765,172,944,261.38/28,636,133.28
  6. Step 6: Final answer
    x = 21,747,530.19

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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.