Home / 21,978,035.20-32,967,052.80-15,175,590.40

Finding the Fourth Proportional to 21,978,035.20, 32,967,052.80 and 15,175,590.40

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Solution

The fourth proportional to 21,978,035.20, 32,967,052.80 and 15,175,590.40 is: 22,763,385.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,978,035.20 : 32,967,052.80 = 15,175,590.40 : x
  2. Step 2: Convert to fraction form
    21,978,035.20/32,967,052.80 = 15,175,590.40/x
  3. Step 3: Cross multiply
    21,978,035.20x = 32,967,052.80 × 15,175,590.40
  4. Step 4: Simplify right side
    21,978,035.20x = 500,294,489,987,973.12
  5. Step 5: Solve for x
    x = 500,294,489,987,973.12/21,978,035.20
  6. Step 6: Final answer
    x = 22,763,385.60

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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.