Home / 188,128,161.96-259,620,975.86-103,356,373.26

Finding the Fourth Proportional to 188,128,161.96, 259,620,975.86 and 103,356,373.26

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Solution

The fourth proportional to 188,128,161.96, 259,620,975.86 and 103,356,373.26 is: 142,634,054.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,128,161.96 : 259,620,975.86 = 103,356,373.26 : x
  2. Step 2: Convert to fraction form
    188,128,161.96/259,620,975.86 = 103,356,373.26/x
  3. Step 3: Cross multiply
    188,128,161.96x = 259,620,975.86 × 103,356,373.26
  4. Step 4: Simplify right side
    188,128,161.96x = 26,833,482,486,594,828
  5. Step 5: Solve for x
    x = 26,833,482,486,594,828/188,128,161.96
  6. Step 6: Final answer
    x = 142,634,054.40

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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.