Home / 757,157,976.25-1,137,734,352.18-407,662,445.61

Finding the Fourth Proportional to 757,157,976.25, 1,137,734,352.18 and 407,662,445.61

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Solution

The fourth proportional to 757,157,976.25, 1,137,734,352.18 and 407,662,445.61 is: 612,569,084.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,157,976.25 : 1,137,734,352.18 = 407,662,445.61 : x
  2. Step 2: Convert to fraction form
    757,157,976.25/1,137,734,352.18 = 407,662,445.61/x
  3. Step 3: Cross multiply
    757,157,976.25x = 1,137,734,352.18 × 407,662,445.61
  4. Step 4: Simplify right side
    757,157,976.25x = 463,811,568,464,207,872
  5. Step 5: Solve for x
    x = 463,811,568,464,207,872/757,157,976.25
  6. Step 6: Final answer
    x = 612,569,084.67

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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.