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Finding the Third Proportional to 1,377,155,220 and 2,988,124,755

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Solution

The third proportional to 1,377,155,220 and 2,988,124,755 is: 6,483,575,287.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,155,220 : 2,988,124,755 = 2,988,124,755 : x
  2. Step 2: Convert to fraction form
    1,377,155,220/2,988,124,755 = 2,988,124,755/x
  3. Step 3: Cross multiply
    1,377,155,220x = 2,988,124,755 × 2,988,124,755
  4. Step 4: Simplify right side
    1,377,155,220x = 8,928,889,551,443,810,304
  5. Step 5: Solve for x
    x = 8,928,889,551,443,810,304/1,377,155,220
  6. Step 6: Final answer
    x = 6,483,575,287.50

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.