Finding the Fourth Proportional to 5,270,157,811.12, 7,905,255,194.22 and 1,339,864,391.92
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Solution
The fourth proportional to 5,270,157,811.12, 7,905,255,194.22 and 1,339,864,391.92 is: 2,009,801,285.54
Step by Step Solution
- Step 1: Write the proportion equation
5,270,157,811.12 : 7,905,255,194.22 = 1,339,864,391.92 : x - Step 2: Convert to fraction form
5,270,157,811.12/7,905,255,194.22 = 1,339,864,391.92/x - Step 3: Cross multiply
5,270,157,811.12x = 7,905,255,194.22 × 1,339,864,391.92 - Step 4: Simplify right side
5,270,157,811.12x = 10,591,969,943,776,002,048 - Step 5: Solve for x
x = 10,591,969,943,776,002,048/5,270,157,811.12 - Step 6: Final answer
x = 2,009,801,285.54
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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.