Home / 1,425,942,698.48-2,137,404,442.88-479,639,936

Finding the Fourth Proportional to 1,425,942,698.48, 2,137,404,442.88 and 479,639,936

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Solution

The fourth proportional to 1,425,942,698.48, 2,137,404,442.88 and 479,639,936 is: 718,952,122.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,942,698.48 : 2,137,404,442.88 = 479,639,936 : x
  2. Step 2: Convert to fraction form
    1,425,942,698.48/2,137,404,442.88 = 479,639,936/x
  3. Step 3: Cross multiply
    1,425,942,698.48x = 2,137,404,442.88 × 479,639,936
  4. Step 4: Simplify right side
    1,425,942,698.48x = 1,025,184,530,189,078,912
  5. Step 5: Solve for x
    x = 1,025,184,530,189,078,912/1,425,942,698.48
  6. Step 6: Final answer
    x = 718,952,122.89

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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.