Home / 383,841,266,129.62-529,717,598,016.45-212,563,197,619.15

Finding the Fourth Proportional to 383,841,266,129.62, 529,717,598,016.45 and 212,563,197,619.15

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Solution

The fourth proportional to 383,841,266,129.62, 529,717,598,016.45 and 212,563,197,619.15 is: 293,346,433,552.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,841,266,129.62 : 529,717,598,016.45 = 212,563,197,619.15 : x
  2. Step 2: Convert to fraction form
    383,841,266,129.62/529,717,598,016.45 = 212,563,197,619.15/x
  3. Step 3: Cross multiply
    383,841,266,129.62x = 529,717,598,016.45 × 212,563,197,619.15
  4. Step 4: Simplify right side
    383,841,266,129.62x = 112,598,466,469,512,119,058,432
  5. Step 5: Solve for x
    x = 112,598,466,469,512,119,058,432/383,841,266,129.62
  6. Step 6: Final answer
    x = 293,346,433,552.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.