Finding the Fourth Proportional to 880,262,402.70, 1,320,393,604.05 and 472,115,714.70
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Solution
The fourth proportional to 880,262,402.70, 1,320,393,604.05 and 472,115,714.70 is: 708,173,572.05
Step by Step Solution
- Step 1: Write the proportion equation
880,262,402.70 : 1,320,393,604.05 = 472,115,714.70 : x - Step 2: Convert to fraction form
880,262,402.70/1,320,393,604.05 = 472,115,714.70/x - Step 3: Cross multiply
880,262,402.70x = 1,320,393,604.05 × 472,115,714.70 - Step 4: Simplify right side
880,262,402.70x = 623,378,570,061,374,464 - Step 5: Solve for x
x = 623,378,570,061,374,464/880,262,402.70 - Step 6: Final answer
x = 708,173,572.05
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Double scale
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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.