Home / 289,568,474.06-399,601,655.27-157,401,606.94

Finding the Fourth Proportional to 289,568,474.06, 399,601,655.27 and 157,401,606.94

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Solution

The fourth proportional to 289,568,474.06, 399,601,655.27 and 157,401,606.94 is: 217,212,674.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,568,474.06 : 399,601,655.27 = 157,401,606.94 : x
  2. Step 2: Convert to fraction form
    289,568,474.06/399,601,655.27 = 157,401,606.94/x
  3. Step 3: Cross multiply
    289,568,474.06x = 399,601,655.27 × 157,401,606.94
  4. Step 4: Simplify right side
    289,568,474.06x = 62,897,942,675,307,472
  5. Step 5: Solve for x
    x = 62,897,942,675,307,472/289,568,474.06
  6. Step 6: Final answer
    x = 217,212,674.41

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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.