Home / 289,682,556.42-399,749,759.10-164,243,191.08

Finding the Fourth Proportional to 289,682,556.42, 399,749,759.10 and 164,243,191.08

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Solution

The fourth proportional to 289,682,556.42, 399,749,759.10 and 164,243,191.08 is: 226,648,704.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,682,556.42 : 399,749,759.10 = 164,243,191.08 : x
  2. Step 2: Convert to fraction form
    289,682,556.42/399,749,759.10 = 164,243,191.08/x
  3. Step 3: Cross multiply
    289,682,556.42x = 399,749,759.10 × 164,243,191.08
  4. Step 4: Simplify right side
    289,682,556.42x = 65,656,176,068,045,280
  5. Step 5: Solve for x
    x = 65,656,176,068,045,280/289,682,556.42
  6. Step 6: Final answer
    x = 226,648,704.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.