Finding the Fourth Proportional to 554,084,805.62, 764,451,367.67 and 319,130,762.42
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Solution
The fourth proportional to 554,084,805.62, 764,451,367.67 and 319,130,762.42 is: 440,293,517.03
Step by Step Solution
- Step 1: Write the proportion equation
554,084,805.62 : 764,451,367.67 = 319,130,762.42 : x - Step 2: Convert to fraction form
554,084,805.62/764,451,367.67 = 319,130,762.42/x - Step 3: Cross multiply
554,084,805.62x = 764,451,367.67 × 319,130,762.42 - Step 4: Simplify right side
554,084,805.62x = 243,959,947,800,247,808 - Step 5: Solve for x
x = 243,959,947,800,247,808/554,084,805.62 - Step 6: Final answer
x = 440,293,517.03
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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.