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Finding the Third Proportional to 143,365,438 and 312,764,925

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Solution

The third proportional to 143,365,438 and 312,764,925 is: 682,325,528.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,365,438 : 312,764,925 = 312,764,925 : x
  2. Step 2: Convert to fraction form
    143,365,438/312,764,925 = 312,764,925/x
  3. Step 3: Cross multiply
    143,365,438x = 312,764,925 × 312,764,925
  4. Step 4: Simplify right side
    143,365,438x = 97,821,898,310,255,632
  5. Step 5: Solve for x
    x = 97,821,898,310,255,632/143,365,438
  6. Step 6: Final answer
    x = 682,325,528.91

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.