Home / 78,555,183.90-108,398,386.71-43,751,112.54

Finding the Fourth Proportional to 78,555,183.90, 108,398,386.71 and 43,751,112.54

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Solution

The fourth proportional to 78,555,183.90, 108,398,386.71 and 43,751,112.54 is: 60,372,209.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,555,183.90 : 108,398,386.71 = 43,751,112.54 : x
  2. Step 2: Convert to fraction form
    78,555,183.90/108,398,386.71 = 43,751,112.54/x
  3. Step 3: Cross multiply
    78,555,183.90x = 108,398,386.71 × 43,751,112.54
  4. Step 4: Simplify right side
    78,555,183.90x = 4,742,550,016,103,650
  5. Step 5: Solve for x
    x = 4,742,550,016,103,650/78,555,183.90
  6. Step 6: Final answer
    x = 60,372,209.45

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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.