Home / 18,128,401.20-27,192,601.80-17,939,444.40

Finding the Fourth Proportional to 18,128,401.20, 27,192,601.80 and 17,939,444.40

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Solution

The fourth proportional to 18,128,401.20, 27,192,601.80 and 17,939,444.40 is: 26,909,166.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128,401.20 : 27,192,601.80 = 17,939,444.40 : x
  2. Step 2: Convert to fraction form
    18,128,401.20/27,192,601.80 = 17,939,444.40/x
  3. Step 3: Cross multiply
    18,128,401.20x = 27,192,601.80 × 17,939,444.40
  4. Step 4: Simplify right side
    18,128,401.20x = 487,820,168,082,439.88
  5. Step 5: Solve for x
    x = 487,820,168,082,439.88/18,128,401.20
  6. Step 6: Final answer
    x = 26,909,166.60

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1.5x scale

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.