Finding the Fourth Proportional to 918,153,902.05, 1,377,230,853.08 and 918,153,902.05
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Solution
The fourth proportional to 918,153,902.05, 1,377,230,853.08 and 918,153,902.05 is: 1,377,230,853.08
Step by Step Solution
- Step 1: Write the proportion equation
918,153,902.05 : 1,377,230,853.08 = 918,153,902.05 : x - Step 2: Convert to fraction form
918,153,902.05/1,377,230,853.08 = 918,153,902.05/x - Step 3: Cross multiply
918,153,902.05x = 1,377,230,853.08 × 918,153,902.05 - Step 4: Simplify right side
918,153,902.05x = 1,264,509,881,779,052,032 - Step 5: Solve for x
x = 1,264,509,881,779,052,032/918,153,902.05 - Step 6: Final answer
x = 1,377,230,853.08
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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.