Home / 20,507,999.60-30,761,999.40-17,173,650.80

Finding the Fourth Proportional to 20,507,999.60, 30,761,999.40 and 17,173,650.80

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Solution

The fourth proportional to 20,507,999.60, 30,761,999.40 and 17,173,650.80 is: 25,760,476.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,507,999.60 : 30,761,999.40 = 17,173,650.80 : x
  2. Step 2: Convert to fraction form
    20,507,999.60/30,761,999.40 = 17,173,650.80/x
  3. Step 3: Cross multiply
    20,507,999.60x = 30,761,999.40 × 17,173,650.80
  4. Step 4: Simplify right side
    20,507,999.60x = 528,295,835,605,409.50
  5. Step 5: Solve for x
    x = 528,295,835,605,409.50/20,507,999.60
  6. Step 6: Final answer
    x = 25,760,476.20

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1.5x scale

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.