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Finding the Third Proportional to 8,685,574.50 and 12,775,477.50

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Solution

The third proportional to 8,685,574.50 and 12,775,477.50 is: 18,791,252.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685,574.50 : 12,775,477.50 = 12,775,477.50 : x
  2. Step 2: Convert to fraction form
    8,685,574.50/12,775,477.50 = 12,775,477.50/x
  3. Step 3: Cross multiply
    8,685,574.50x = 12,775,477.50 × 12,775,477.50
  4. Step 4: Simplify right side
    8,685,574.50x = 163,212,825,353,006.25
  5. Step 5: Solve for x
    x = 163,212,825,353,006.25/8,685,574.50
  6. Step 6: Final answer
    x = 18,791,252.71

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.