Home / 214,533,020.40-321,967,492.20-99,531,812.40

Finding the Fourth Proportional to 214,533,020.40, 321,967,492.20 and 99,531,812.40

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Solution

The fourth proportional to 214,533,020.40, 321,967,492.20 and 99,531,812.40 is: 149,375,643.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,533,020.40 : 321,967,492.20 = 99,531,812.40 : x
  2. Step 2: Convert to fraction form
    214,533,020.40/321,967,492.20 = 99,531,812.40/x
  3. Step 3: Cross multiply
    214,533,020.40x = 321,967,492.20 × 99,531,812.40
  4. Step 4: Simplify right side
    214,533,020.40x = 32,046,008,032,548,864
  5. Step 5: Solve for x
    x = 32,046,008,032,548,864/214,533,020.40
  6. Step 6: Final answer
    x = 149,375,643.77

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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.