Finding the Fourth Proportional to 921,847,869.80, 1,382,771,804.70 and 921,847,869.80
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Solution
The fourth proportional to 921,847,869.80, 1,382,771,804.70 and 921,847,869.80 is: 1,382,771,804.70
Step by Step Solution
- Step 1: Write the proportion equation
921,847,869.80 : 1,382,771,804.70 = 921,847,869.80 : x - Step 2: Convert to fraction form
921,847,869.80/1,382,771,804.70 = 921,847,869.80/x - Step 3: Cross multiply
921,847,869.80x = 1,382,771,804.70 × 921,847,869.80 - Step 4: Simplify right side
921,847,869.80x = 1,274,705,242,582,196,480 - Step 5: Solve for x
x = 1,274,705,242,582,196,480/921,847,869.80 - Step 6: Final answer
x = 1,382,771,804.70
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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.