Finding the Fourth Proportional to 5,356,923.52, 7,392,608.80 and 2,909,558.08
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Solution
The fourth proportional to 5,356,923.52, 7,392,608.80 and 2,909,558.08 is: 4,015,219.67
Step by Step Solution
- Step 1: Write the proportion equation
5,356,923.52 : 7,392,608.80 = 2,909,558.08 : x - Step 2: Convert to fraction form
5,356,923.52/7,392,608.80 = 2,909,558.08/x - Step 3: Cross multiply
5,356,923.52x = 7,392,608.80 × 2,909,558.08 - Step 4: Simplify right side
5,356,923.52x = 21,509,224,666,319.11 - Step 5: Solve for x
x = 21,509,224,666,319.11/5,356,923.52 - Step 6: Final answer
x = 4,015,219.67
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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.