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Finding the Third Proportional to 1,378,186,704 and 2,118,371,940

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Solution

The third proportional to 1,378,186,704 and 2,118,371,940 is: 3,256,089,804.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,186,704 : 2,118,371,940 = 2,118,371,940 : x
  2. Step 2: Convert to fraction form
    1,378,186,704/2,118,371,940 = 2,118,371,940/x
  3. Step 3: Cross multiply
    1,378,186,704x = 2,118,371,940 × 2,118,371,940
  4. Step 4: Simplify right side
    1,378,186,704x = 4,487,499,676,179,363,840
  5. Step 5: Solve for x
    x = 4,487,499,676,179,363,840/1,378,186,704
  6. Step 6: Final answer
    x = 3,256,089,804.93

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.