Finding the Fourth Proportional to 6,911,278,311.65, 9,537,496,169.63 and 3,739,392,632.21
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Solution
The fourth proportional to 6,911,278,311.65, 9,537,496,169.63 and 3,739,392,632.21 is: 5,160,325,094.46
Step by Step Solution
- Step 1: Write the proportion equation
6,911,278,311.65 : 9,537,496,169.63 = 3,739,392,632.21 : x - Step 2: Convert to fraction form
6,911,278,311.65/9,537,496,169.63 = 3,739,392,632.21/x - Step 3: Cross multiply
6,911,278,311.65x = 9,537,496,169.63 × 3,739,392,632.21 - Step 4: Simplify right side
6,911,278,311.65x = 35,664,442,906,379,132,928 - Step 5: Solve for x
x = 35,664,442,906,379,132,928/6,911,278,311.65 - Step 6: Final answer
x = 5,160,325,094.46
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1.5x scale
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.