Home / 1,396,942,865.80-2,095,414,298.70-414,404,830.60

Finding the Fourth Proportional to 1,396,942,865.80, 2,095,414,298.70 and 414,404,830.60

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Solution

The fourth proportional to 1,396,942,865.80, 2,095,414,298.70 and 414,404,830.60 is: 621,607,245.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,942,865.80 : 2,095,414,298.70 = 414,404,830.60 : x
  2. Step 2: Convert to fraction form
    1,396,942,865.80/2,095,414,298.70 = 414,404,830.60/x
  3. Step 3: Cross multiply
    1,396,942,865.80x = 2,095,414,298.70 × 414,404,830.60
  4. Step 4: Simplify right side
    1,396,942,865.80x = 868,349,807,489,591,424
  5. Step 5: Solve for x
    x = 868,349,807,489,591,424/1,396,942,865.80
  6. Step 6: Final answer
    x = 621,607,245.90

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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.