Home / 134,145,784.06-185,093,817.44-78,380,418.90

Finding the Fourth Proportional to 134,145,784.06, 185,093,817.44 and 78,380,418.90

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Solution

The fourth proportional to 134,145,784.06, 185,093,817.44 and 78,380,418.90 is: 108,148,989.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,145,784.06 : 185,093,817.44 = 78,380,418.90 : x
  2. Step 2: Convert to fraction form
    134,145,784.06/185,093,817.44 = 78,380,418.90/x
  3. Step 3: Cross multiply
    134,145,784.06x = 185,093,817.44 × 78,380,418.90
  4. Step 4: Simplify right side
    134,145,784.06x = 14,507,730,946,747,326
  5. Step 5: Solve for x
    x = 14,507,730,946,747,326/134,145,784.06
  6. Step 6: Final answer
    x = 108,148,989.16

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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.