Home / 193,552,019.60-290,328,029.40-85,846,643.60

Finding the Fourth Proportional to 193,552,019.60, 290,328,029.40 and 85,846,643.60

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Solution

The fourth proportional to 193,552,019.60, 290,328,029.40 and 85,846,643.60 is: 128,769,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,552,019.60 : 290,328,029.40 = 85,846,643.60 : x
  2. Step 2: Convert to fraction form
    193,552,019.60/290,328,029.40 = 85,846,643.60/x
  3. Step 3: Cross multiply
    193,552,019.60x = 290,328,029.40 × 85,846,643.60
  4. Step 4: Simplify right side
    193,552,019.60x = 24,923,686,866,992,120
  5. Step 5: Solve for x
    x = 24,923,686,866,992,120/193,552,019.60
  6. Step 6: Final answer
    x = 128,769,965.40

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Similar ratio
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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.