Home / 189,052,896.89-260,897,610.86-105,420,211.19

Finding the Fourth Proportional to 189,052,896.89, 260,897,610.86 and 105,420,211.19

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Solution

The fourth proportional to 189,052,896.89, 260,897,610.86 and 105,420,211.19 is: 145,482,463.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,052,896.89 : 260,897,610.86 = 105,420,211.19 : x
  2. Step 2: Convert to fraction form
    189,052,896.89/260,897,610.86 = 105,420,211.19/x
  3. Step 3: Cross multiply
    189,052,896.89x = 260,897,610.86 × 105,420,211.19
  4. Step 4: Simplify right side
    189,052,896.89x = 27,503,881,233,996,048
  5. Step 5: Solve for x
    x = 27,503,881,233,996,048/189,052,896.89
  6. Step 6: Final answer
    x = 145,482,463.84

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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.