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Finding the Third Proportional to 4,197,788 and 8,900,028

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Solution

The third proportional to 4,197,788 and 8,900,028 is: 18,869,580.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,197,788 : 8,900,028 = 8,900,028 : x
  2. Step 2: Convert to fraction form
    4,197,788/8,900,028 = 8,900,028/x
  3. Step 3: Cross multiply
    4,197,788x = 8,900,028 × 8,900,028
  4. Step 4: Simplify right side
    4,197,788x = 79,210,498,400,784
  5. Step 5: Solve for x
    x = 79,210,498,400,784/4,197,788
  6. Step 6: Final answer
    x = 18,869,580.46

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.