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Finding the Third Proportional to 276,804,877.50 and 389,360,331

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Solution

The third proportional to 276,804,877.50 and 389,360,331 is: 547,683,511.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,804,877.50 : 389,360,331 = 389,360,331 : x
  2. Step 2: Convert to fraction form
    276,804,877.50/389,360,331 = 389,360,331/x
  3. Step 3: Cross multiply
    276,804,877.50x = 389,360,331 × 389,360,331
  4. Step 4: Simplify right side
    276,804,877.50x = 151,601,467,356,429,568
  5. Step 5: Solve for x
    x = 151,601,467,356,429,568/276,804,877.50
  6. Step 6: Final answer
    x = 547,683,511.67

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.