Home / 214,326,007.10-321,489,010.65-212,814,352.70

Finding the Fourth Proportional to 214,326,007.10, 321,489,010.65 and 212,814,352.70

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Solution

The fourth proportional to 214,326,007.10, 321,489,010.65 and 212,814,352.70 is: 319,221,529.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,326,007.10 : 321,489,010.65 = 212,814,352.70 : x
  2. Step 2: Convert to fraction form
    214,326,007.10/321,489,010.65 = 212,814,352.70/x
  3. Step 3: Cross multiply
    214,326,007.10x = 321,489,010.65 × 212,814,352.70
  4. Step 4: Simplify right side
    214,326,007.10x = 68,417,475,701,643,144
  5. Step 5: Solve for x
    x = 68,417,475,701,643,144/214,326,007.10
  6. Step 6: Final answer
    x = 319,221,529.05

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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.