Finding the Fourth Proportional to 934,815,480.79, 1,290,075,944.08 and 511,419,319.92
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Solution
The fourth proportional to 934,815,480.79, 1,290,075,944.08 and 511,419,319.92 is: 705,775,391.53
Step by Step Solution
- Step 1: Write the proportion equation
934,815,480.79 : 1,290,075,944.08 = 511,419,319.92 : x - Step 2: Convert to fraction form
934,815,480.79/1,290,075,944.08 = 511,419,319.92/x - Step 3: Cross multiply
934,815,480.79x = 1,290,075,944.08 × 511,419,319.92 - Step 4: Simplify right side
934,815,480.79x = 659,769,761,967,773,952 - Step 5: Solve for x
x = 659,769,761,967,773,952/934,815,480.79 - Step 6: Final answer
x = 705,775,391.53
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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.