Home / 1,152,363,234.50-1,728,542,286.58-890,428,661.13

Finding the Fourth Proportional to 1,152,363,234.50, 1,728,542,286.58 and 890,428,661.13

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Solution

The fourth proportional to 1,152,363,234.50, 1,728,542,286.58 and 890,428,661.13 is: 1,335,641,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,363,234.50 : 1,728,542,286.58 = 890,428,661.13 : x
  2. Step 2: Convert to fraction form
    1,152,363,234.50/1,728,542,286.58 = 890,428,661.13/x
  3. Step 3: Cross multiply
    1,152,363,234.50x = 1,728,542,286.58 × 890,428,661.13
  4. Step 4: Simplify right side
    1,152,363,234.50x = 1,539,143,593,951,965,952
  5. Step 5: Solve for x
    x = 1,539,143,593,951,965,952/1,152,363,234.50
  6. Step 6: Final answer
    x = 1,335,641,009.60

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Double scale
Find fourth proportional to 1,152,363,235.50, 1,728,542,288.08 and 890,428,662.13
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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.