Home / 78,555,185.90-108,398,389.47-43,751,114.54

Finding the Fourth Proportional to 78,555,185.90, 108,398,389.47 and 43,751,114.54

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Solution

The fourth proportional to 78,555,185.90, 108,398,389.47 and 43,751,114.54 is: 60,372,212.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,555,185.90 : 108,398,389.47 = 43,751,114.54 : x
  2. Step 2: Convert to fraction form
    78,555,185.90/108,398,389.47 = 43,751,114.54/x
  3. Step 3: Cross multiply
    78,555,185.90x = 108,398,389.47 × 43,751,114.54
  4. Step 4: Simplify right side
    78,555,185.90x = 4,742,550,353,653,500
  5. Step 5: Solve for x
    x = 4,742,550,353,653,500/78,555,185.90
  6. Step 6: Final answer
    x = 60,372,212.21

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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.