Finding the Fourth Proportional to 774,184,621.20, 1,159,363,744.20 and 513,991,107.60
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Solution
The fourth proportional to 774,184,621.20, 1,159,363,744.20 and 513,991,107.60 is: 769,716,471.59
Step by Step Solution
- Step 1: Write the proportion equation
774,184,621.20 : 1,159,363,744.20 = 513,991,107.60 : x - Step 2: Convert to fraction form
774,184,621.20/1,159,363,744.20 = 513,991,107.60/x - Step 3: Cross multiply
774,184,621.20x = 1,159,363,744.20 × 513,991,107.60 - Step 4: Simplify right side
774,184,621.20x = 595,902,654,992,641,152 - Step 5: Solve for x
x = 595,902,654,992,641,152/774,184,621.20 - Step 6: Final answer
x = 769,716,471.59
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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.