Finding the Fourth Proportional to 921,722,416.05, 1,382,583,624.08 and 921,722,416.05
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Solution
The fourth proportional to 921,722,416.05, 1,382,583,624.08 and 921,722,416.05 is: 1,382,583,624.08
Step by Step Solution
- Step 1: Write the proportion equation
921,722,416.05 : 1,382,583,624.08 = 921,722,416.05 : x - Step 2: Convert to fraction form
921,722,416.05/1,382,583,624.08 = 921,722,416.05/x - Step 3: Cross multiply
921,722,416.05x = 1,382,583,624.08 × 921,722,416.05 - Step 4: Simplify right side
921,722,416.05x = 1,274,358,318,373,573,888 - Step 5: Solve for x
x = 1,274,358,318,373,573,888/921,722,416.05 - Step 6: Final answer
x = 1,382,583,624.08
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1.5x scale
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.