Home / 214,533,140.40-321,967,672.20-99,531,932.40

Finding the Fourth Proportional to 214,533,140.40, 321,967,672.20 and 99,531,932.40

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Solution

The fourth proportional to 214,533,140.40, 321,967,672.20 and 99,531,932.40 is: 149,375,823.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,533,140.40 : 321,967,672.20 = 99,531,932.40 : x
  2. Step 2: Convert to fraction form
    214,533,140.40/321,967,672.20 = 99,531,932.40/x
  3. Step 3: Cross multiply
    214,533,140.40x = 321,967,672.20 × 99,531,932.40
  4. Step 4: Simplify right side
    214,533,140.40x = 32,046,064,584,395,760
  5. Step 5: Solve for x
    x = 32,046,064,584,395,760/214,533,140.40
  6. Step 6: Final answer
    x = 149,375,823.82

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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.