Home / 154,359,448.38-213,016,409.55-84,749,315.22

Finding the Fourth Proportional to 154,359,448.38, 213,016,409.55 and 84,749,315.22

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Solution

The fourth proportional to 154,359,448.38, 213,016,409.55 and 84,749,315.22 is: 116,954,258.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,359,448.38 : 213,016,409.55 = 84,749,315.22 : x
  2. Step 2: Convert to fraction form
    154,359,448.38/213,016,409.55 = 84,749,315.22/x
  3. Step 3: Cross multiply
    154,359,448.38x = 213,016,409.55 × 84,749,315.22
  4. Step 4: Simplify right side
    154,359,448.38x = 18,052,994,839,985,568
  5. Step 5: Solve for x
    x = 18,052,994,839,985,568/154,359,448.38
  6. Step 6: Final answer
    x = 116,954,258.58

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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.