Home / 78,755,478.12-108,682,579.85-43,473,302.91

Finding the Fourth Proportional to 78,755,478.12, 108,682,579.85 and 43,473,302.91

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Solution

The fourth proportional to 78,755,478.12, 108,682,579.85 and 43,473,302.91 is: 59,993,169.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,755,478.12 : 108,682,579.85 = 43,473,302.91 : x
  2. Step 2: Convert to fraction form
    78,755,478.12/108,682,579.85 = 43,473,302.91/x
  3. Step 3: Cross multiply
    78,755,478.12x = 108,682,579.85 × 43,473,302.91
  4. Step 4: Simplify right side
    78,755,478.12x = 4,724,790,714,641,945
  5. Step 5: Solve for x
    x = 4,724,790,714,641,945/78,755,478.12
  6. Step 6: Final answer
    x = 59,993,169.08

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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.