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Finding the Third Proportional to 21,022,182 and 45,186,840

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Solution

The third proportional to 21,022,182 and 45,186,840 is: 97,128,381.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022,182 : 45,186,840 = 45,186,840 : x
  2. Step 2: Convert to fraction form
    21,022,182/45,186,840 = 45,186,840/x
  3. Step 3: Cross multiply
    21,022,182x = 45,186,840 × 45,186,840
  4. Step 4: Simplify right side
    21,022,182x = 2,041,850,509,185,600
  5. Step 5: Solve for x
    x = 2,041,850,509,185,600/21,022,182
  6. Step 6: Final answer
    x = 97,128,381.31

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.