Finding the Fourth Proportional to 867,694,437.51, 1,197,592,122.02 and 515,466,102.75
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Solution
The fourth proportional to 867,694,437.51, 1,197,592,122.02 and 515,466,102.75 is: 711,446,469.10
Step by Step Solution
- Step 1: Write the proportion equation
867,694,437.51 : 1,197,592,122.02 = 515,466,102.75 : x - Step 2: Convert to fraction form
867,694,437.51/1,197,592,122.02 = 515,466,102.75/x - Step 3: Cross multiply
867,694,437.51x = 1,197,592,122.02 × 515,466,102.75 - Step 4: Simplify right side
867,694,437.51x = 617,318,143,821,751,808 - Step 5: Solve for x
x = 617,318,143,821,751,808/867,694,437.51 - Step 6: Final answer
x = 711,446,469.10
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.