Home / 403,760,720.60-605,641,080.90-131,159,043.80

Finding the Fourth Proportional to 403,760,720.60, 605,641,080.90 and 131,159,043.80

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Solution

The fourth proportional to 403,760,720.60, 605,641,080.90 and 131,159,043.80 is: 196,738,565.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,760,720.60 : 605,641,080.90 = 131,159,043.80 : x
  2. Step 2: Convert to fraction form
    403,760,720.60/605,641,080.90 = 131,159,043.80/x
  3. Step 3: Cross multiply
    403,760,720.60x = 605,641,080.90 × 131,159,043.80
  4. Step 4: Simplify right side
    403,760,720.60x = 79,435,305,056,842,432
  5. Step 5: Solve for x
    x = 79,435,305,056,842,432/403,760,720.60
  6. Step 6: Final answer
    x = 196,738,565.70

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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.