Home / 512,453,312.55-768,679,968.83-236,103,992.55

Finding the Fourth Proportional to 512,453,312.55, 768,679,968.83 and 236,103,992.55

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Solution

The fourth proportional to 512,453,312.55, 768,679,968.83 and 236,103,992.55 is: 354,155,988.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,453,312.55 : 768,679,968.83 = 236,103,992.55 : x
  2. Step 2: Convert to fraction form
    512,453,312.55/768,679,968.83 = 236,103,992.55/x
  3. Step 3: Cross multiply
    512,453,312.55x = 768,679,968.83 × 236,103,992.55
  4. Step 4: Simplify right side
    512,453,312.55x = 181,488,409,632,792,064
  5. Step 5: Solve for x
    x = 181,488,409,632,792,064/512,453,312.55
  6. Step 6: Final answer
    x = 354,155,988.83

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Similar ratio
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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.