Home / 201,687,147.66-278,324,484.18-123,364,947.72

Finding the Fourth Proportional to 201,687,147.66, 278,324,484.18 and 123,364,947.72

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Solution

The fourth proportional to 201,687,147.66, 278,324,484.18 and 123,364,947.72 is: 170,241,316.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,687,147.66 : 278,324,484.18 = 123,364,947.72 : x
  2. Step 2: Convert to fraction form
    201,687,147.66/278,324,484.18 = 123,364,947.72/x
  3. Step 3: Cross multiply
    201,687,147.66x = 278,324,484.18 × 123,364,947.72
  4. Step 4: Simplify right side
    201,687,147.66x = 34,335,485,440,207,324
  5. Step 5: Solve for x
    x = 34,335,485,440,207,324/201,687,147.66
  6. Step 6: Final answer
    x = 170,241,316.01

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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.