Home / 214,532,972.40-321,967,420.20-99,531,764.40

Finding the Fourth Proportional to 214,532,972.40, 321,967,420.20 and 99,531,764.40

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Solution

The fourth proportional to 214,532,972.40, 321,967,420.20 and 99,531,764.40 is: 149,375,571.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,532,972.40 : 321,967,420.20 = 99,531,764.40 : x
  2. Step 2: Convert to fraction form
    214,532,972.40/321,967,420.20 = 99,531,764.40/x
  3. Step 3: Cross multiply
    214,532,972.40x = 321,967,420.20 × 99,531,764.40
  4. Step 4: Simplify right side
    214,532,972.40x = 32,045,985,411,822,200
  5. Step 5: Solve for x
    x = 32,045,985,411,822,200/214,532,972.40
  6. Step 6: Final answer
    x = 149,375,571.75

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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.