Home / 1,216,093,907.96-1,678,164,632.88-659,164,997.60

Finding the Fourth Proportional to 1,216,093,907.96, 1,678,164,632.88 and 659,164,997.60

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Solution

The fourth proportional to 1,216,093,907.96, 1,678,164,632.88 and 659,164,997.60 is: 909,623,326.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,093,907.96 : 1,678,164,632.88 = 659,164,997.60 : x
  2. Step 2: Convert to fraction form
    1,216,093,907.96/1,678,164,632.88 = 659,164,997.60/x
  3. Step 3: Cross multiply
    1,216,093,907.96x = 1,678,164,632.88 × 659,164,997.60
  4. Step 4: Simplify right side
    1,216,093,907.96x = 1,106,187,386,204,750,208
  5. Step 5: Solve for x
    x = 1,106,187,386,204,750,208/1,216,093,907.96
  6. Step 6: Final answer
    x = 909,623,326.75

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.