Home / 189,608,393.16-261,554,817.83-154,364,111.78

Finding the Fourth Proportional to 189,608,393.16, 261,554,817.83 and 154,364,111.78

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Solution

The fourth proportional to 189,608,393.16, 261,554,817.83 and 154,364,111.78 is: 212,937,183.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,608,393.16 : 261,554,817.83 = 154,364,111.78 : x
  2. Step 2: Convert to fraction form
    189,608,393.16/261,554,817.83 = 154,364,111.78/x
  3. Step 3: Cross multiply
    189,608,393.16x = 261,554,817.83 × 154,364,111.78
  4. Step 4: Simplify right side
    189,608,393.16x = 40,374,677,134,028,064
  5. Step 5: Solve for x
    x = 40,374,677,134,028,064/189,608,393.16
  6. Step 6: Final answer
    x = 212,937,183.11

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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.