Home / 78,893,224.11-118,339,836.66-21,385,495.05

Finding the Fourth Proportional to 78,893,224.11, 118,339,836.66 and 21,385,495.05

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Solution

The fourth proportional to 78,893,224.11, 118,339,836.66 and 21,385,495.05 is: 32,078,242.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,893,224.11 : 118,339,836.66 = 21,385,495.05 : x
  2. Step 2: Convert to fraction form
    78,893,224.11/118,339,836.66 = 21,385,495.05/x
  3. Step 3: Cross multiply
    78,893,224.11x = 118,339,836.66 × 21,385,495.05
  4. Step 4: Simplify right side
    78,893,224.11x = 2,530,755,991,110,238.50
  5. Step 5: Solve for x
    x = 2,530,755,991,110,238.50/78,893,224.11
  6. Step 6: Final answer
    x = 32,078,242.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.