Home / 21,395,200.80-32,116,420.80-13,317,297.60

Finding the Fourth Proportional to 21,395,200.80, 32,116,420.80 and 13,317,297.60

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Solution

The fourth proportional to 21,395,200.80, 32,116,420.80 and 13,317,297.60 is: 19,990,648.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,395,200.80 : 32,116,420.80 = 13,317,297.60 : x
  2. Step 2: Convert to fraction form
    21,395,200.80/32,116,420.80 = 13,317,297.60/x
  3. Step 3: Cross multiply
    21,395,200.80x = 32,116,420.80 × 13,317,297.60
  4. Step 4: Simplify right side
    21,395,200.80x = 427,703,933,640,430.06
  5. Step 5: Solve for x
    x = 427,703,933,640,430.06/21,395,200.80
  6. Step 6: Final answer
    x = 19,990,648.26

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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.