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Finding the Third Proportional to 18,487,659.80 and 28,850,698.55

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Solution

The third proportional to 18,487,659.80 and 28,850,698.55 is: 45,022,615.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,487,659.80 : 28,850,698.55 = 28,850,698.55 : x
  2. Step 2: Convert to fraction form
    18,487,659.80/28,850,698.55 = 28,850,698.55/x
  3. Step 3: Cross multiply
    18,487,659.80x = 28,850,698.55 × 28,850,698.55
  4. Step 4: Simplify right side
    18,487,659.80x = 832,362,806,642,655.25
  5. Step 5: Solve for x
    x = 832,362,806,642,655.25/18,487,659.80
  6. Step 6: Final answer
    x = 45,022,615.94

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.