Home / 1,271,079,387.96-1,906,583,837.09-338,410,237.55

Finding the Fourth Proportional to 1,271,079,387.96, 1,906,583,837.09 and 338,410,237.55

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Solution

The fourth proportional to 1,271,079,387.96, 1,906,583,837.09 and 338,410,237.55 is: 507,605,972.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,079,387.96 : 1,906,583,837.09 = 338,410,237.55 : x
  2. Step 2: Convert to fraction form
    1,271,079,387.96/1,906,583,837.09 = 338,410,237.55/x
  3. Step 3: Cross multiply
    1,271,079,387.96x = 1,906,583,837.09 × 338,410,237.55
  4. Step 4: Simplify right side
    1,271,079,387.96x = 645,207,489,219,463,424
  5. Step 5: Solve for x
    x = 645,207,489,219,463,424/1,271,079,387.96
  6. Step 6: Final answer
    x = 507,605,972.79

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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.