Home / 144,015,128.18-198,741,482.55-77,935,629.54

Finding the Fourth Proportional to 144,015,128.18, 198,741,482.55 and 77,935,629.54

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Solution

The fourth proportional to 144,015,128.18, 198,741,482.55 and 77,935,629.54 is: 107,551,496.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,015,128.18 : 198,741,482.55 = 77,935,629.54 : x
  2. Step 2: Convert to fraction form
    144,015,128.18/198,741,482.55 = 77,935,629.54/x
  3. Step 3: Cross multiply
    144,015,128.18x = 198,741,482.55 × 77,935,629.54
  4. Step 4: Simplify right side
    144,015,128.18x = 15,489,042,558,247,176
  5. Step 5: Solve for x
    x = 15,489,042,558,247,176/144,015,128.18
  6. Step 6: Final answer
    x = 107,551,496.53

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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.