Home / 12,928,432.28-17,842,039.90-7,127,203.37

Finding the Fourth Proportional to 12,928,432.28, 17,842,039.90 and 7,127,203.37

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Solution

The fourth proportional to 12,928,432.28, 17,842,039.90 and 7,127,203.37 is: 9,835,983.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928,432.28 : 17,842,039.90 = 7,127,203.37 : x
  2. Step 2: Convert to fraction form
    12,928,432.28/17,842,039.90 = 7,127,203.37/x
  3. Step 3: Cross multiply
    12,928,432.28x = 17,842,039.90 × 7,127,203.37
  4. Step 4: Simplify right side
    12,928,432.28x = 127,163,846,795,926.27
  5. Step 5: Solve for x
    x = 127,163,846,795,926.27/12,928,432.28
  6. Step 6: Final answer
    x = 9,835,983.52

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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.