Home / 780,327,964.14-1,170,495,857.70-198,062,383.38

Finding the Fourth Proportional to 780,327,964.14, 1,170,495,857.70 and 198,062,383.38

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Solution

The fourth proportional to 780,327,964.14, 1,170,495,857.70 and 198,062,383.38 is: 297,094,567.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,327,964.14 : 1,170,495,857.70 = 198,062,383.38 : x
  2. Step 2: Convert to fraction form
    780,327,964.14/1,170,495,857.70 = 198,062,383.38/x
  3. Step 3: Cross multiply
    780,327,964.14x = 1,170,495,857.70 × 198,062,383.38
  4. Step 4: Simplify right side
    780,327,964.14x = 231,831,199,312,479,328
  5. Step 5: Solve for x
    x = 231,831,199,312,479,328/780,327,964.14
  6. Step 6: Final answer
    x = 297,094,567.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.