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Finding the Fourth Proportional to 13,842,812.40, 20,765,773.80 and 4,258,114.80

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Solution

The fourth proportional to 13,842,812.40, 20,765,773.80 and 4,258,114.80 is: 6,387,650.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842,812.40 : 20,765,773.80 = 4,258,114.80 : x
  2. Step 2: Convert to fraction form
    13,842,812.40/20,765,773.80 = 4,258,114.80/x
  3. Step 3: Cross multiply
    13,842,812.40x = 20,765,773.80 × 4,258,114.80
  4. Step 4: Simplify right side
    13,842,812.40x = 88,423,048,751,232.23
  5. Step 5: Solve for x
    x = 88,423,048,751,232.23/13,842,812.40
  6. Step 6: Final answer
    x = 6,387,650.59

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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.