Home / 21,002,439.60-31,466,334.60-18,016,455.60

Finding the Fourth Proportional to 21,002,439.60, 31,466,334.60 and 18,016,455.60

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Solution

The fourth proportional to 21,002,439.60, 31,466,334.60 and 18,016,455.60 is: 26,992,665.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,002,439.60 : 31,466,334.60 = 18,016,455.60 : x
  2. Step 2: Convert to fraction form
    21,002,439.60/31,466,334.60 = 18,016,455.60/x
  3. Step 3: Cross multiply
    21,002,439.60x = 31,466,334.60 × 18,016,455.60
  4. Step 4: Simplify right side
    21,002,439.60x = 566,911,820,215,643.88
  5. Step 5: Solve for x
    x = 566,911,820,215,643.88/21,002,439.60
  6. Step 6: Final answer
    x = 26,992,665.19

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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.