Home / 172,780,617.60-259,170,926.40-126,864,115.20

Finding the Fourth Proportional to 172,780,617.60, 259,170,926.40 and 126,864,115.20

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Solution

The fourth proportional to 172,780,617.60, 259,170,926.40 and 126,864,115.20 is: 190,296,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,780,617.60 : 259,170,926.40 = 126,864,115.20 : x
  2. Step 2: Convert to fraction form
    172,780,617.60/259,170,926.40 = 126,864,115.20/x
  3. Step 3: Cross multiply
    172,780,617.60x = 259,170,926.40 × 126,864,115.20
  4. Step 4: Simplify right side
    172,780,617.60x = 32,879,490,263,300,324
  5. Step 5: Solve for x
    x = 32,879,490,263,300,324/172,780,617.60
  6. Step 6: Final answer
    x = 190,296,172.80

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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.