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Finding the Third Proportional to 28,765,890 and 61,800,740

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Solution

The third proportional to 28,765,890 and 61,800,740 is: 132,772,928.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,765,890 : 61,800,740 = 61,800,740 : x
  2. Step 2: Convert to fraction form
    28,765,890/61,800,740 = 61,800,740/x
  3. Step 3: Cross multiply
    28,765,890x = 61,800,740 × 61,800,740
  4. Step 4: Simplify right side
    28,765,890x = 3,819,331,464,547,600
  5. Step 5: Solve for x
    x = 3,819,331,464,547,600/28,765,890
  6. Step 6: Final answer
    x = 132,772,928.79

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.