Home / 21,686,820.40-32,530,230.60-11,945,047.60

Finding the Fourth Proportional to 21,686,820.40, 32,530,230.60 and 11,945,047.60

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Solution

The fourth proportional to 21,686,820.40, 32,530,230.60 and 11,945,047.60 is: 17,917,571.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,686,820.40 : 32,530,230.60 = 11,945,047.60 : x
  2. Step 2: Convert to fraction form
    21,686,820.40/32,530,230.60 = 11,945,047.60/x
  3. Step 3: Cross multiply
    21,686,820.40x = 32,530,230.60 × 11,945,047.60
  4. Step 4: Simplify right side
    21,686,820.40x = 388,575,152,955,976.56
  5. Step 5: Solve for x
    x = 388,575,152,955,976.56/21,686,820.40
  6. Step 6: Final answer
    x = 17,917,571.40

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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.