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Finding the Third Proportional to 21,130,030 and 31,745,518

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Solution

The third proportional to 21,130,030 and 31,745,518 is: 47,694,107.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,130,030 : 31,745,518 = 31,745,518 : x
  2. Step 2: Convert to fraction form
    21,130,030/31,745,518 = 31,745,518/x
  3. Step 3: Cross multiply
    21,130,030x = 31,745,518 × 31,745,518
  4. Step 4: Simplify right side
    21,130,030x = 1,007,777,913,088,324
  5. Step 5: Solve for x
    x = 1,007,777,913,088,324/21,130,030
  6. Step 6: Final answer
    x = 47,694,107.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.