Finding the Fourth Proportional to 397,501,485.26, 548,570,154.08 and 221,300,671.68
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Solution
The fourth proportional to 397,501,485.26, 548,570,154.08 and 221,300,671.68 is: 305,405,006.18
Step by Step Solution
- Step 1: Write the proportion equation
397,501,485.26 : 548,570,154.08 = 221,300,671.68 : x - Step 2: Convert to fraction form
397,501,485.26/548,570,154.08 = 221,300,671.68/x - Step 3: Cross multiply
397,501,485.26x = 548,570,154.08 × 221,300,671.68 - Step 4: Simplify right side
397,501,485.26x = 121,398,943,561,505,104 - Step 5: Solve for x
x = 121,398,943,561,505,104/397,501,485.26 - Step 6: Final answer
x = 305,405,006.18
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.