Home / 217,242,679.20-325,864,018.80-193,434,122.40

Finding the Fourth Proportional to 217,242,679.20, 325,864,018.80 and 193,434,122.40

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Solution

The fourth proportional to 217,242,679.20, 325,864,018.80 and 193,434,122.40 is: 290,151,183.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,242,679.20 : 325,864,018.80 = 193,434,122.40 : x
  2. Step 2: Convert to fraction form
    217,242,679.20/325,864,018.80 = 193,434,122.40/x
  3. Step 3: Cross multiply
    217,242,679.20x = 325,864,018.80 × 193,434,122.40
  4. Step 4: Simplify right side
    217,242,679.20x = 63,033,220,498,315,104
  5. Step 5: Solve for x
    x = 63,033,220,498,315,104/217,242,679.20
  6. Step 6: Final answer
    x = 290,151,183.60

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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.