Home / 20,725,973.40-31,046,969.70-11,740,027.80

Finding the Fourth Proportional to 20,725,973.40, 31,046,969.70 and 11,740,027.80

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Solution

The fourth proportional to 20,725,973.40, 31,046,969.70 and 11,740,027.80 is: 17,586,256.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725,973.40 : 31,046,969.70 = 11,740,027.80 : x
  2. Step 2: Convert to fraction form
    20,725,973.40/31,046,969.70 = 11,740,027.80/x
  3. Step 3: Cross multiply
    20,725,973.40x = 31,046,969.70 × 11,740,027.80
  4. Step 4: Simplify right side
    20,725,973.40x = 364,492,287,383,757.69
  5. Step 5: Solve for x
    x = 364,492,287,383,757.69/20,725,973.40
  6. Step 6: Final answer
    x = 17,586,256.64

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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.