Finding the Fourth Proportional to 833,663,021.22, 1,248,916,129.98 and 556,478,442.18
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Solution
The fourth proportional to 833,663,021.22, 1,248,916,129.98 and 556,478,442.18 is: 833,664,064.18
Step by Step Solution
- Step 1: Write the proportion equation
833,663,021.22 : 1,248,916,129.98 = 556,478,442.18 : x - Step 2: Convert to fraction form
833,663,021.22/1,248,916,129.98 = 556,478,442.18/x - Step 3: Cross multiply
833,663,021.22x = 1,248,916,129.98 × 556,478,442.18 - Step 4: Simplify right side
833,663,021.22x = 694,994,902,424,744,704 - Step 5: Solve for x
x = 694,994,902,424,744,704/833,663,021.22 - Step 6: Final answer
x = 833,664,064.18
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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.