Home / 13,601,455.20-18,765,260.28-7,720,388.64

Finding the Fourth Proportional to 13,601,455.20, 18,765,260.28 and 7,720,388.64

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Solution

The fourth proportional to 13,601,455.20, 18,765,260.28 and 7,720,388.64 is: 10,651,441.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601,455.20 : 18,765,260.28 = 7,720,388.64 : x
  2. Step 2: Convert to fraction form
    13,601,455.20/18,765,260.28 = 7,720,388.64/x
  3. Step 3: Cross multiply
    13,601,455.20x = 18,765,260.28 × 7,720,388.64
  4. Step 4: Simplify right side
    13,601,455.20x = 144,875,102,292,355.22
  5. Step 5: Solve for x
    x = 144,875,102,292,355.22/13,601,455.20
  6. Step 6: Final answer
    x = 10,651,441.35

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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.