Home / 151,941,409.32-209,751,440.52-101,791,979.28

Finding the Fourth Proportional to 151,941,409.32, 209,751,440.52 and 101,791,979.28

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Solution

The fourth proportional to 151,941,409.32, 209,751,440.52 and 101,791,979.28 is: 140,521,365.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,941,409.32 : 209,751,440.52 = 101,791,979.28 : x
  2. Step 2: Convert to fraction form
    151,941,409.32/209,751,440.52 = 101,791,979.28/x
  3. Step 3: Cross multiply
    151,941,409.32x = 209,751,440.52 × 101,791,979.28
  4. Step 4: Simplify right side
    151,941,409.32x = 21,351,014,287,361,992
  5. Step 5: Solve for x
    x = 21,351,014,287,361,992/151,941,409.32
  6. Step 6: Final answer
    x = 140,521,365.33

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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.