Home / 83,640,673.15-125,461,009.73-74,313,883.60

Finding the Fourth Proportional to 83,640,673.15, 125,461,009.73 and 74,313,883.60

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Solution

The fourth proportional to 83,640,673.15, 125,461,009.73 and 74,313,883.60 is: 111,470,825.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,640,673.15 : 125,461,009.73 = 74,313,883.60 : x
  2. Step 2: Convert to fraction form
    83,640,673.15/125,461,009.73 = 74,313,883.60/x
  3. Step 3: Cross multiply
    83,640,673.15x = 125,461,009.73 × 74,313,883.60
  4. Step 4: Simplify right side
    83,640,673.15x = 9,323,494,873,413,686
  5. Step 5: Solve for x
    x = 9,323,494,873,413,686/83,640,673.15
  6. Step 6: Final answer
    x = 111,470,825.40

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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.