Home / 384,779,694.19-530,981,752.38-208,563,906.15

Finding the Fourth Proportional to 384,779,694.19, 530,981,752.38 and 208,563,906.15

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Solution

The fourth proportional to 384,779,694.19, 530,981,752.38 and 208,563,906.15 is: 287,810,479.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,779,694.19 : 530,981,752.38 = 208,563,906.15 : x
  2. Step 2: Convert to fraction form
    384,779,694.19/530,981,752.38 = 208,563,906.15/x
  3. Step 3: Cross multiply
    384,779,694.19x = 530,981,752.38 × 208,563,906.15
  4. Step 4: Simplify right side
    384,779,694.19x = 110,743,628,370,744,864
  5. Step 5: Solve for x
    x = 110,743,628,370,744,864/384,779,694.19
  6. Step 6: Final answer
    x = 287,810,479.72

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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.