Home / 12,928,671.50-17,841,704.10-7,127,660.84

Finding the Fourth Proportional to 12,928,671.50, 17,841,704.10 and 7,127,660.84

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Solution

The fourth proportional to 12,928,671.50, 17,841,704.10 and 7,127,660.84 is: 9,836,247.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928,671.50 : 17,841,704.10 = 7,127,660.84 : x
  2. Step 2: Convert to fraction form
    12,928,671.50/17,841,704.10 = 7,127,660.84/x
  3. Step 3: Cross multiply
    12,928,671.50x = 17,841,704.10 × 7,127,660.84
  4. Step 4: Simplify right side
    12,928,671.50x = 127,169,615,632,437.45
  5. Step 5: Solve for x
    x = 127,169,615,632,437.45/12,928,671.50
  6. Step 6: Final answer
    x = 9,836,247.73

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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.