Home / 21,352,051.80-32,028,077.70-20,360,028.60

Finding the Fourth Proportional to 21,352,051.80, 32,028,077.70 and 20,360,028.60

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Solution

The fourth proportional to 21,352,051.80, 32,028,077.70 and 20,360,028.60 is: 30,540,042.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,352,051.80 : 32,028,077.70 = 20,360,028.60 : x
  2. Step 2: Convert to fraction form
    21,352,051.80/32,028,077.70 = 20,360,028.60/x
  3. Step 3: Cross multiply
    21,352,051.80x = 32,028,077.70 × 20,360,028.60
  4. Step 4: Simplify right side
    21,352,051.80x = 652,092,577,975,022.25
  5. Step 5: Solve for x
    x = 652,092,577,975,022.25/21,352,051.80
  6. Step 6: Final answer
    x = 30,540,042.90

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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.