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Finding the Third Proportional to 387,875,388 and 837,279,672

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Solution

The third proportional to 387,875,388 and 837,279,672 is: 1,807,377,500.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,875,388 : 837,279,672 = 837,279,672 : x
  2. Step 2: Convert to fraction form
    387,875,388/837,279,672 = 837,279,672/x
  3. Step 3: Cross multiply
    387,875,388x = 837,279,672 × 837,279,672
  4. Step 4: Simplify right side
    387,875,388x = 701,037,249,144,427,520
  5. Step 5: Solve for x
    x = 701,037,249,144,427,520/387,875,388
  6. Step 6: Final answer
    x = 1,807,377,500.18

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.