Finding the Fourth Proportional to 1,229,127,059.10, 1,843,690,588.65 and 539,364,755.10
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Solution
The fourth proportional to 1,229,127,059.10, 1,843,690,588.65 and 539,364,755.10 is: 809,047,132.65
Step by Step Solution
- Step 1: Write the proportion equation
1,229,127,059.10 : 1,843,690,588.65 = 539,364,755.10 : x - Step 2: Convert to fraction form
1,229,127,059.10/1,843,690,588.65 = 539,364,755.10/x - Step 3: Cross multiply
1,229,127,059.10x = 1,843,690,588.65 × 539,364,755.10 - Step 4: Simplify right side
1,229,127,059.10x = 994,421,722,827,382,144 - Step 5: Solve for x
x = 994,421,722,827,382,144/1,229,127,059.10 - Step 6: Final answer
x = 809,047,132.65
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Double scale
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Similar ratio
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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.