Finding the Fourth Proportional to 684,548,305.80, 1,026,822,458.70 and 684,548,305.80
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Solution
The fourth proportional to 684,548,305.80, 1,026,822,458.70 and 684,548,305.80 is: 1,026,822,458.70
Step by Step Solution
- Step 1: Write the proportion equation
684,548,305.80 : 1,026,822,458.70 = 684,548,305.80 : x - Step 2: Convert to fraction form
684,548,305.80/1,026,822,458.70 = 684,548,305.80/x - Step 3: Cross multiply
684,548,305.80x = 1,026,822,458.70 × 684,548,305.80 - Step 4: Simplify right side
684,548,305.80x = 702,909,574,460,475,392 - Step 5: Solve for x
x = 702,909,574,460,475,392/684,548,305.80 - Step 6: Final answer
x = 1,026,822,458.70
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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.