Home / 78,312,619.74-108,081,379.44-47,373,010.44

Finding the Fourth Proportional to 78,312,619.74, 108,081,379.44 and 47,373,010.44

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Solution

The fourth proportional to 78,312,619.74, 108,081,379.44 and 47,373,010.44 is: 65,380,781.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,312,619.74 : 108,081,379.44 = 47,373,010.44 : x
  2. Step 2: Convert to fraction form
    78,312,619.74/108,081,379.44 = 47,373,010.44/x
  3. Step 3: Cross multiply
    78,312,619.74x = 108,081,379.44 × 47,373,010.44
  4. Step 4: Simplify right side
    78,312,619.74x = 5,120,140,316,580,721
  5. Step 5: Solve for x
    x = 5,120,140,316,580,721/78,312,619.74
  6. Step 6: Final answer
    x = 65,380,781.97

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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.