Home / 66,170,649.20-99,256,009.80-20,735,999.60

Finding the Fourth Proportional to 66,170,649.20, 99,256,009.80 and 20,735,999.60

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Solution

The fourth proportional to 66,170,649.20, 99,256,009.80 and 20,735,999.60 is: 31,104,010.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,170,649.20 : 99,256,009.80 = 20,735,999.60 : x
  2. Step 2: Convert to fraction form
    66,170,649.20/99,256,009.80 = 20,735,999.60/x
  3. Step 3: Cross multiply
    66,170,649.20x = 99,256,009.80 × 20,735,999.60
  4. Step 4: Simplify right side
    66,170,649.20x = 2,058,172,579,510,396.25
  5. Step 5: Solve for x
    x = 2,058,172,579,510,396.25/66,170,649.20
  6. Step 6: Final answer
    x = 31,104,010.68

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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.