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Finding the Third Proportional to 8,685,574 and 12,775,476

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Solution

The third proportional to 8,685,574 and 12,775,476 is: 18,791,249.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685,574 : 12,775,476 = 12,775,476 : x
  2. Step 2: Convert to fraction form
    8,685,574/12,775,476 = 12,775,476/x
  3. Step 3: Cross multiply
    8,685,574x = 12,775,476 × 12,775,476
  4. Step 4: Simplify right side
    8,685,574x = 163,212,787,026,576
  5. Step 5: Solve for x
    x = 163,212,787,026,576/8,685,574
  6. Step 6: Final answer
    x = 18,791,249.38

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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.