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Finding the Third Proportional to 121,200,300 and 188,052,840

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Solution

The third proportional to 121,200,300 and 188,052,840 is: 291,780,388.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,200,300 : 188,052,840 = 188,052,840 : x
  2. Step 2: Convert to fraction form
    121,200,300/188,052,840 = 188,052,840/x
  3. Step 3: Cross multiply
    121,200,300x = 188,052,840 × 188,052,840
  4. Step 4: Simplify right side
    121,200,300x = 35,363,870,632,065,600
  5. Step 5: Solve for x
    x = 35,363,870,632,065,600/121,200,300
  6. Step 6: Final answer
    x = 291,780,388.60

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.