Home / 214,326,014.60-321,489,021.90-212,814,360.20

Finding the Fourth Proportional to 214,326,014.60, 321,489,021.90 and 212,814,360.20

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Solution

The fourth proportional to 214,326,014.60, 321,489,021.90 and 212,814,360.20 is: 319,221,540.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,326,014.60 : 321,489,021.90 = 212,814,360.20 : x
  2. Step 2: Convert to fraction form
    214,326,014.60/321,489,021.90 = 212,814,360.20/x
  3. Step 3: Cross multiply
    214,326,014.60x = 321,489,021.90 × 212,814,360.20
  4. Step 4: Simplify right side
    214,326,014.60x = 68,417,480,506,972,280
  5. Step 5: Solve for x
    x = 68,417,480,506,972,280/214,326,014.60
  6. Step 6: Final answer
    x = 319,221,540.30

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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.