Home / 137,084,463.28-189,130,554.42-78,305,514.04

Finding the Fourth Proportional to 137,084,463.28, 189,130,554.42 and 78,305,514.04

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Solution

The fourth proportional to 137,084,463.28, 189,130,554.42 and 78,305,514.04 is: 108,035,330.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,084,463.28 : 189,130,554.42 = 78,305,514.04 : x
  2. Step 2: Convert to fraction form
    137,084,463.28/189,130,554.42 = 78,305,514.04/x
  3. Step 3: Cross multiply
    137,084,463.28x = 189,130,554.42 × 78,305,514.04
  4. Step 4: Simplify right side
    137,084,463.28x = 14,809,965,284,471,062
  5. Step 5: Solve for x
    x = 14,809,965,284,471,062/137,084,463.28
  6. Step 6: Final answer
    x = 108,035,330.41

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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.