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Finding the Third Proportional to 7,812,283.50 and 12,431,416.50

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Solution

The third proportional to 7,812,283.50 and 12,431,416.50 is: 19,781,683.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,812,283.50 : 12,431,416.50 = 12,431,416.50 : x
  2. Step 2: Convert to fraction form
    7,812,283.50/12,431,416.50 = 12,431,416.50/x
  3. Step 3: Cross multiply
    7,812,283.50x = 12,431,416.50 × 12,431,416.50
  4. Step 4: Simplify right side
    7,812,283.50x = 154,540,116,196,472.25
  5. Step 5: Solve for x
    x = 154,540,116,196,472.25/7,812,283.50
  6. Step 6: Final answer
    x = 19,781,683.06

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.