Home / 384,779,712.85-530,981,778.08-208,563,924.81

Finding the Fourth Proportional to 384,779,712.85, 530,981,778.08 and 208,563,924.81

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Solution

The fourth proportional to 384,779,712.85, 530,981,778.08 and 208,563,924.81 is: 287,810,505.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,779,712.85 : 530,981,778.08 = 208,563,924.81 : x
  2. Step 2: Convert to fraction form
    384,779,712.85/530,981,778.08 = 208,563,924.81/x
  3. Step 3: Cross multiply
    384,779,712.85x = 530,981,778.08 × 208,563,924.81
  4. Step 4: Simplify right side
    384,779,712.85x = 110,743,643,639,685,760
  5. Step 5: Solve for x
    x = 110,743,643,639,685,760/384,779,712.85
  6. Step 6: Final answer
    x = 287,810,505.44

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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.