Home / 31,509,005.40-47,169,029.70-18,722,928.60

Finding the Fourth Proportional to 31,509,005.40, 47,169,029.70 and 18,722,928.60

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Solution

The fourth proportional to 31,509,005.40, 47,169,029.70 and 18,722,928.60 is: 28,028,253.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,509,005.40 : 47,169,029.70 = 18,722,928.60 : x
  2. Step 2: Convert to fraction form
    31,509,005.40/47,169,029.70 = 18,722,928.60/x
  3. Step 3: Cross multiply
    31,509,005.40x = 47,169,029.70 × 18,722,928.60
  4. Step 4: Simplify right side
    31,509,005.40x = 883,142,375,204,379.50
  5. Step 5: Solve for x
    x = 883,142,375,204,379.50/31,509,005.40
  6. Step 6: Final answer
    x = 28,028,253.00

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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.