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Finding the Third Proportional to 1,912,390,562 and 2,813,899,947

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Solution

The third proportional to 1,912,390,562 and 2,813,899,947 is: 4,140,384,850.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,390,562 : 2,813,899,947 = 2,813,899,947 : x
  2. Step 2: Convert to fraction form
    1,912,390,562/2,813,899,947 = 2,813,899,947/x
  3. Step 3: Cross multiply
    1,912,390,562x = 2,813,899,947 × 2,813,899,947
  4. Step 4: Simplify right side
    1,912,390,562x = 7,918,032,911,726,603,264
  5. Step 5: Solve for x
    x = 7,918,032,911,726,603,264/1,912,390,562
  6. Step 6: Final answer
    x = 4,140,384,850.80

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.