Home / 792,540,021.40-1,188,810,032.10-425,208,002.20

Finding the Fourth Proportional to 792,540,021.40, 1,188,810,032.10 and 425,208,002.20

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Solution

The fourth proportional to 792,540,021.40, 1,188,810,032.10 and 425,208,002.20 is: 637,812,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,540,021.40 : 1,188,810,032.10 = 425,208,002.20 : x
  2. Step 2: Convert to fraction form
    792,540,021.40/1,188,810,032.10 = 425,208,002.20/x
  3. Step 3: Cross multiply
    792,540,021.40x = 1,188,810,032.10 × 425,208,002.20
  4. Step 4: Simplify right side
    792,540,021.40x = 505,491,538,744,558,784
  5. Step 5: Solve for x
    x = 505,491,538,744,558,784/792,540,021.40
  6. Step 6: Final answer
    x = 637,812,003.30

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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.