Home / 140,533,921.56-193,942,873.44-77,810,019.84

Finding the Fourth Proportional to 140,533,921.56, 193,942,873.44 and 77,810,019.84

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Solution

The fourth proportional to 140,533,921.56, 193,942,873.44 and 77,810,019.84 is: 107,381,183.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,533,921.56 : 193,942,873.44 = 77,810,019.84 : x
  2. Step 2: Convert to fraction form
    140,533,921.56/193,942,873.44 = 77,810,019.84/x
  3. Step 3: Cross multiply
    140,533,921.56x = 193,942,873.44 × 77,810,019.84
  4. Step 4: Simplify right side
    140,533,921.56x = 15,090,698,830,193,010
  5. Step 5: Solve for x
    x = 15,090,698,830,193,010/140,533,921.56
  6. Step 6: Final answer
    x = 107,381,183.58

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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.