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Finding the Third Proportional to 12,617,685 and 18,905,476.50

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Solution

The third proportional to 12,617,685 and 18,905,476.50 is: 28,326,673.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,617,685 : 18,905,476.50 = 18,905,476.50 : x
  2. Step 2: Convert to fraction form
    12,617,685/18,905,476.50 = 18,905,476.50/x
  3. Step 3: Cross multiply
    12,617,685x = 18,905,476.50 × 18,905,476.50
  4. Step 4: Simplify right side
    12,617,685x = 357,417,041,692,052.25
  5. Step 5: Solve for x
    x = 357,417,041,692,052.25/12,617,685
  6. Step 6: Final answer
    x = 28,326,673.37

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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.