Home / 214,326,004.60-321,489,006.90-212,814,350.20

Finding the Fourth Proportional to 214,326,004.60, 321,489,006.90 and 212,814,350.20

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Solution

The fourth proportional to 214,326,004.60, 321,489,006.90 and 212,814,350.20 is: 319,221,525.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,326,004.60 : 321,489,006.90 = 212,814,350.20 : x
  2. Step 2: Convert to fraction form
    214,326,004.60/321,489,006.90 = 212,814,350.20/x
  3. Step 3: Cross multiply
    214,326,004.60x = 321,489,006.90 × 212,814,350.20
  4. Step 4: Simplify right side
    214,326,004.60x = 68,417,474,099,866,808
  5. Step 5: Solve for x
    x = 68,417,474,099,866,808/214,326,004.60
  6. Step 6: Final answer
    x = 319,221,525.30

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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.