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Finding the Third Proportional to 389,910,704 and 866,999,875

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Solution

The third proportional to 389,910,704 and 866,999,875 is: 1,927,848,544.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,910,704 : 866,999,875 = 866,999,875 : x
  2. Step 2: Convert to fraction form
    389,910,704/866,999,875 = 866,999,875/x
  3. Step 3: Cross multiply
    389,910,704x = 866,999,875 × 866,999,875
  4. Step 4: Simplify right side
    389,910,704x = 751,688,783,250,015,616
  5. Step 5: Solve for x
    x = 751,688,783,250,015,616/389,910,704
  6. Step 6: Final answer
    x = 1,927,848,544.65

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.