Home / 383,969,221.59-529,877,183.45-216,740,682.39

Finding the Fourth Proportional to 383,969,221.59, 529,877,183.45 and 216,740,682.39

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Solution

The fourth proportional to 383,969,221.59, 529,877,183.45 and 216,740,682.39 is: 299,101,948.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,969,221.59 : 529,877,183.45 = 216,740,682.39 : x
  2. Step 2: Convert to fraction form
    383,969,221.59/529,877,183.45 = 216,740,682.39/x
  3. Step 3: Cross multiply
    383,969,221.59x = 529,877,183.45 × 216,740,682.39
  4. Step 4: Simplify right side
    383,969,221.59x = 114,845,942,322,760,496
  5. Step 5: Solve for x
    x = 114,845,942,322,760,496/383,969,221.59
  6. Step 6: Final answer
    x = 299,101,948.45

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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.