Home / 384,779,709.84-530,981,773.97-208,563,921.79

Finding the Fourth Proportional to 384,779,709.84, 530,981,773.97 and 208,563,921.79

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Solution

The fourth proportional to 384,779,709.84, 530,981,773.97 and 208,563,921.79 is: 287,810,501.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,779,709.84 : 530,981,773.97 = 208,563,921.79 : x
  2. Step 2: Convert to fraction form
    384,779,709.84/530,981,773.97 = 208,563,921.79/x
  3. Step 3: Cross multiply
    384,779,709.84x = 530,981,773.97 × 208,563,921.79
  4. Step 4: Simplify right side
    384,779,709.84x = 110,743,641,179,118,960
  5. Step 5: Solve for x
    x = 110,743,641,179,118,960/384,779,709.84
  6. Step 6: Final answer
    x = 287,810,501.30

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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.