Home / 214,532,380.40-321,966,532.20-99,531,172.40

Finding the Fourth Proportional to 214,532,380.40, 321,966,532.20 and 99,531,172.40

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Solution

The fourth proportional to 214,532,380.40, 321,966,532.20 and 99,531,172.40 is: 149,374,683.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,532,380.40 : 321,966,532.20 = 99,531,172.40 : x
  2. Step 2: Convert to fraction form
    214,532,380.40/321,966,532.20 = 99,531,172.40/x
  3. Step 3: Cross multiply
    214,532,380.40x = 321,966,532.20 × 99,531,172.40
  4. Step 4: Simplify right side
    214,532,380.40x = 32,045,706,423,428,352
  5. Step 5: Solve for x
    x = 32,045,706,423,428,352/214,532,380.40
  6. Step 6: Final answer
    x = 149,374,683.50

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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.