Home / 214,326,005.10-321,489,007.65-212,814,350.70

Finding the Fourth Proportional to 214,326,005.10, 321,489,007.65 and 212,814,350.70

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Solution

The fourth proportional to 214,326,005.10, 321,489,007.65 and 212,814,350.70 is: 319,221,526.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,326,005.10 : 321,489,007.65 = 212,814,350.70 : x
  2. Step 2: Convert to fraction form
    214,326,005.10/321,489,007.65 = 212,814,350.70/x
  3. Step 3: Cross multiply
    214,326,005.10x = 321,489,007.65 × 212,814,350.70
  4. Step 4: Simplify right side
    214,326,005.10x = 68,417,474,420,222,072
  5. Step 5: Solve for x
    x = 68,417,474,420,222,072/214,326,005.10
  6. Step 6: Final answer
    x = 319,221,526.05

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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.