Home / 786,050,478.66-1,178,633,287.04-261,138,563.42

Finding the Fourth Proportional to 786,050,478.66, 1,178,633,287.04 and 261,138,563.42

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Solution

The fourth proportional to 786,050,478.66, 1,178,633,287.04 and 261,138,563.42 is: 391,560,862.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,050,478.66 : 1,178,633,287.04 = 261,138,563.42 : x
  2. Step 2: Convert to fraction form
    786,050,478.66/1,178,633,287.04 = 261,138,563.42/x
  3. Step 3: Cross multiply
    786,050,478.66x = 1,178,633,287.04 × 261,138,563.42
  4. Step 4: Simplify right side
    786,050,478.66x = 307,786,603,376,618,048
  5. Step 5: Solve for x
    x = 307,786,603,376,618,048/786,050,478.66
  6. Step 6: Final answer
    x = 391,560,862.48

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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.