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Finding the Third Proportional to 644,813,402 and 1,399,103,640

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Solution

The third proportional to 644,813,402 and 1,399,103,640 is: 3,035,747,999.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,813,402 : 1,399,103,640 = 1,399,103,640 : x
  2. Step 2: Convert to fraction form
    644,813,402/1,399,103,640 = 1,399,103,640/x
  3. Step 3: Cross multiply
    644,813,402x = 1,399,103,640 × 1,399,103,640
  4. Step 4: Simplify right side
    644,813,402x = 1,957,490,995,461,249,536
  5. Step 5: Solve for x
    x = 1,957,490,995,461,249,536/644,813,402
  6. Step 6: Final answer
    x = 3,035,747,999.95

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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.