Home / 769,686,872.10-1,062,126,975.27-435,139,392.57

Finding the Fourth Proportional to 769,686,872.10, 1,062,126,975.27 and 435,139,392.57

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Solution

The fourth proportional to 769,686,872.10, 1,062,126,975.27 and 435,139,392.57 is: 600,469,234.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,686,872.10 : 1,062,126,975.27 = 435,139,392.57 : x
  2. Step 2: Convert to fraction form
    769,686,872.10/1,062,126,975.27 = 435,139,392.57/x
  3. Step 3: Cross multiply
    769,686,872.10x = 1,062,126,975.27 × 435,139,392.57
  4. Step 4: Simplify right side
    769,686,872.10x = 462,173,286,851,199,168
  5. Step 5: Solve for x
    x = 462,173,286,851,199,168/769,686,872.10
  6. Step 6: Final answer
    x = 600,469,234.44

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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.