Home / 384,779,694.68-530,981,753.05-208,563,906.64

Finding the Fourth Proportional to 384,779,694.68, 530,981,753.05 and 208,563,906.64

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Solution

The fourth proportional to 384,779,694.68, 530,981,753.05 and 208,563,906.64 is: 287,810,480.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,779,694.68 : 530,981,753.05 = 208,563,906.64 : x
  2. Step 2: Convert to fraction form
    384,779,694.68/530,981,753.05 = 208,563,906.64/x
  3. Step 3: Cross multiply
    384,779,694.68x = 530,981,753.05 × 208,563,906.64
  4. Step 4: Simplify right side
    384,779,694.68x = 110,743,628,770,595,232
  5. Step 5: Solve for x
    x = 110,743,628,770,595,232/384,779,694.68
  6. Step 6: Final answer
    x = 287,810,480.39

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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.