Home / 121,185,318.56-182,047,018.92-75,161,199.28

Finding the Fourth Proportional to 121,185,318.56, 182,047,018.92 and 75,161,199.28

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Solution

The fourth proportional to 121,185,318.56, 182,047,018.92 and 75,161,199.28 is: 112,908,662.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,185,318.56 : 182,047,018.92 = 75,161,199.28 : x
  2. Step 2: Convert to fraction form
    121,185,318.56/182,047,018.92 = 75,161,199.28/x
  3. Step 3: Cross multiply
    121,185,318.56x = 182,047,018.92 × 75,161,199.28
  4. Step 4: Simplify right side
    121,185,318.56x = 13,682,872,267,376,050
  5. Step 5: Solve for x
    x = 13,682,872,267,376,050/121,185,318.56
  6. Step 6: Final answer
    x = 112,908,662.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.