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Finding the Third Proportional to 2,180,209,963 and 4,782,513,271

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Solution

The third proportional to 2,180,209,963 and 4,782,513,271 is: 10,490,931,412.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180,209,963 : 4,782,513,271 = 4,782,513,271 : x
  2. Step 2: Convert to fraction form
    2,180,209,963/4,782,513,271 = 4,782,513,271/x
  3. Step 3: Cross multiply
    2,180,209,963x = 4,782,513,271 × 4,782,513,271
  4. Step 4: Simplify right side
    2,180,209,963x = 22,872,433,187,291,119,616
  5. Step 5: Solve for x
    x = 22,872,433,187,291,119,616/2,180,209,963
  6. Step 6: Final answer
    x = 10,490,931,412.78

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.