Home / 212,689,815.80-319,034,723.70-182,078,814.20

Finding the Fourth Proportional to 212,689,815.80, 319,034,723.70 and 182,078,814.20

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Solution

The fourth proportional to 212,689,815.80, 319,034,723.70 and 182,078,814.20 is: 273,118,221.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,689,815.80 : 319,034,723.70 = 182,078,814.20 : x
  2. Step 2: Convert to fraction form
    212,689,815.80/319,034,723.70 = 182,078,814.20/x
  3. Step 3: Cross multiply
    212,689,815.80x = 319,034,723.70 × 182,078,814.20
  4. Step 4: Simplify right side
    212,689,815.80x = 58,089,464,179,920,632
  5. Step 5: Solve for x
    x = 58,089,464,179,920,632/212,689,815.80
  6. Step 6: Final answer
    x = 273,118,221.30

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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.