Home / 512,453,492.80-768,680,239.20-236,104,172.80

Finding the Fourth Proportional to 512,453,492.80, 768,680,239.20 and 236,104,172.80

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Solution

The fourth proportional to 512,453,492.80, 768,680,239.20 and 236,104,172.80 is: 354,156,259.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,453,492.80 : 768,680,239.20 = 236,104,172.80 : x
  2. Step 2: Convert to fraction form
    512,453,492.80/768,680,239.20 = 236,104,172.80/x
  3. Step 3: Cross multiply
    512,453,492.80x = 768,680,239.20 × 236,104,172.80
  4. Step 4: Simplify right side
    512,453,492.80x = 181,488,612,024,022,144
  5. Step 5: Solve for x
    x = 181,488,612,024,022,144/512,453,492.80
  6. Step 6: Final answer
    x = 354,156,259.20

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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.