Finding the Fourth Proportional to 13,319,356.68, 19,970,944.56 and 5,222,631.84
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Solution
The fourth proportional to 13,319,356.68, 19,970,944.56 and 5,222,631.84 is: 7,830,775.42
Step by Step Solution
- Step 1: Write the proportion equation
13,319,356.68 : 19,970,944.56 = 5,222,631.84 : x - Step 2: Convert to fraction form
13,319,356.68/19,970,944.56 = 5,222,631.84/x - Step 3: Cross multiply
13,319,356.68x = 19,970,944.56 × 5,222,631.84 - Step 4: Simplify right side
13,319,356.68x = 104,300,890,933,930.78 - Step 5: Solve for x
x = 104,300,890,933,930.78/13,319,356.68 - Step 6: Final answer
x = 7,830,775.42
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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.