Home / 31,507,986.30-47,261,979.45-12,332,370.30

Finding the Fourth Proportional to 31,507,986.30, 47,261,979.45 and 12,332,370.30

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Solution

The fourth proportional to 31,507,986.30, 47,261,979.45 and 12,332,370.30 is: 18,498,555.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,507,986.30 : 47,261,979.45 = 12,332,370.30 : x
  2. Step 2: Convert to fraction form
    31,507,986.30/47,261,979.45 = 12,332,370.30/x
  3. Step 3: Cross multiply
    31,507,986.30x = 47,261,979.45 × 12,332,370.30
  4. Step 4: Simplify right side
    31,507,986.30x = 582,852,231,688,390.38
  5. Step 5: Solve for x
    x = 582,852,231,688,390.38/31,507,986.30
  6. Step 6: Final answer
    x = 18,498,555.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.