Home / 205,106,321.93-283,001,476.32-121,432,904.78

Finding the Fourth Proportional to 205,106,321.93, 283,001,476.32 and 121,432,904.78

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Solution

The fourth proportional to 205,106,321.93, 283,001,476.32 and 121,432,904.78 is: 167,550,619.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,106,321.93 : 283,001,476.32 = 121,432,904.78 : x
  2. Step 2: Convert to fraction form
    205,106,321.93/283,001,476.32 = 121,432,904.78/x
  3. Step 3: Cross multiply
    205,106,321.93x = 283,001,476.32 × 121,432,904.78
  4. Step 4: Simplify right side
    205,106,321.93x = 34,365,691,325,150,980
  5. Step 5: Solve for x
    x = 34,365,691,325,150,980/205,106,321.93
  6. Step 6: Final answer
    x = 167,550,619.61

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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.