Finding the Fourth Proportional to 440,933,367.42, 608,178,252.39 and 290,177,991.34
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Solution
The fourth proportional to 440,933,367.42, 608,178,252.39 and 290,177,991.34 is: 400,241,752.37
Step by Step Solution
- Step 1: Write the proportion equation
440,933,367.42 : 608,178,252.39 = 290,177,991.34 : x - Step 2: Convert to fraction form
440,933,367.42/608,178,252.39 = 290,177,991.34/x - Step 3: Cross multiply
440,933,367.42x = 608,178,252.39 × 290,177,991.34 - Step 4: Simplify right side
440,933,367.42x = 176,479,943,652,578,592 - Step 5: Solve for x
x = 176,479,943,652,578,592/440,933,367.42 - Step 6: Final answer
x = 400,241,752.37
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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.