Home / 311,956,614.04-430,524,365.34-172,740,328.60

Finding the Fourth Proportional to 311,956,614.04, 430,524,365.34 and 172,740,328.60

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Solution

The fourth proportional to 311,956,614.04, 430,524,365.34 and 172,740,328.60 is: 238,395,074.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,956,614.04 : 430,524,365.34 = 172,740,328.60 : x
  2. Step 2: Convert to fraction form
    311,956,614.04/430,524,365.34 = 172,740,328.60/x
  3. Step 3: Cross multiply
    311,956,614.04x = 430,524,365.34 × 172,740,328.60
  4. Step 4: Simplify right side
    311,956,614.04x = 74,368,920,339,138,048
  5. Step 5: Solve for x
    x = 74,368,920,339,138,048/311,956,614.04
  6. Step 6: Final answer
    x = 238,395,074.80

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.