Home / 1,076,760,151.38-1,614,493,388.07-420,930,069.30

Finding the Fourth Proportional to 1,076,760,151.38, 1,614,493,388.07 and 420,930,069.30

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Solution

The fourth proportional to 1,076,760,151.38, 1,614,493,388.07 and 420,930,069.30 is: 631,142,239.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,760,151.38 : 1,614,493,388.07 = 420,930,069.30 : x
  2. Step 2: Convert to fraction form
    1,076,760,151.38/1,614,493,388.07 = 420,930,069.30/x
  3. Step 3: Cross multiply
    1,076,760,151.38x = 1,614,493,388.07 × 420,930,069.30
  4. Step 4: Simplify right side
    1,076,760,151.38x = 679,588,813,724,696,832
  5. Step 5: Solve for x
    x = 679,588,813,724,696,832/1,076,760,151.38
  6. Step 6: Final answer
    x = 631,142,239.85

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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.