Home / 20,970,241.25-28,924,025.81-13,997,403.16

Finding the Fourth Proportional to 20,970,241.25, 28,924,025.81 and 13,997,403.16

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Solution

The fourth proportional to 20,970,241.25, 28,924,025.81 and 13,997,403.16 is: 19,306,466.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,970,241.25 : 28,924,025.81 = 13,997,403.16 : x
  2. Step 2: Convert to fraction form
    20,970,241.25/28,924,025.81 = 13,997,403.16/x
  3. Step 3: Cross multiply
    20,970,241.25x = 28,924,025.81 × 13,997,403.16
  4. Step 4: Simplify right side
    20,970,241.25x = 404,861,250,130,518.50
  5. Step 5: Solve for x
    x = 404,861,250,130,518.50/20,970,241.25
  6. Step 6: Final answer
    x = 19,306,466.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.