Home / 1,489,644,878.40-2,230,640,942.40-1,180,983,945.60

Finding the Fourth Proportional to 1,489,644,878.40, 2,230,640,942.40 and 1,180,983,945.60

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Solution

The fourth proportional to 1,489,644,878.40, 2,230,640,942.40 and 1,180,983,945.60 is: 1,768,442,384.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,644,878.40 : 2,230,640,942.40 = 1,180,983,945.60 : x
  2. Step 2: Convert to fraction form
    1,489,644,878.40/2,230,640,942.40 = 1,180,983,945.60/x
  3. Step 3: Cross multiply
    1,489,644,878.40x = 2,230,640,942.40 × 1,180,983,945.60
  4. Step 4: Simplify right side
    1,489,644,878.40x = 2,634,351,141,372,454,400
  5. Step 5: Solve for x
    x = 2,634,351,141,372,454,400/1,489,644,878.40
  6. Step 6: Final answer
    x = 1,768,442,384.87

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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.