Home / 154,729,790.33-213,528,236.31-84,166,009.79

Finding the Fourth Proportional to 154,729,790.33, 213,528,236.31 and 84,166,009.79

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Solution

The fourth proportional to 154,729,790.33, 213,528,236.31 and 84,166,009.79 is: 116,149,705.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,729,790.33 : 213,528,236.31 = 84,166,009.79 : x
  2. Step 2: Convert to fraction form
    154,729,790.33/213,528,236.31 = 84,166,009.79/x
  3. Step 3: Cross multiply
    154,729,790.33x = 213,528,236.31 × 84,166,009.79
  4. Step 4: Simplify right side
    154,729,790.33x = 17,971,819,626,641,252
  5. Step 5: Solve for x
    x = 17,971,819,626,641,252/154,729,790.33
  6. Step 6: Final answer
    x = 116,149,705.81

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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.