Home / 384,779,694.90-530,981,753.35-208,563,906.86

Finding the Fourth Proportional to 384,779,694.90, 530,981,753.35 and 208,563,906.86

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Solution

The fourth proportional to 384,779,694.90, 530,981,753.35 and 208,563,906.86 is: 287,810,480.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,779,694.90 : 530,981,753.35 = 208,563,906.86 : x
  2. Step 2: Convert to fraction form
    384,779,694.90/530,981,753.35 = 208,563,906.86/x
  3. Step 3: Cross multiply
    384,779,694.90x = 530,981,753.35 × 208,563,906.86
  4. Step 4: Simplify right side
    384,779,694.90x = 110,743,628,949,242,848
  5. Step 5: Solve for x
    x = 110,743,628,949,242,848/384,779,694.90
  6. Step 6: Final answer
    x = 287,810,480.69

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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.