Finding the Fourth Proportional to 238,683,138.81, 329,100,918.62 and 163,365,748.35
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Solution
The fourth proportional to 238,683,138.81, 329,100,918.62 and 163,365,748.35 is: 225,251,846.95
Step by Step Solution
- Step 1: Write the proportion equation
238,683,138.81 : 329,100,918.62 = 163,365,748.35 : x - Step 2: Convert to fraction form
238,683,138.81/329,100,918.62 = 163,365,748.35/x - Step 3: Cross multiply
238,683,138.81x = 329,100,918.62 × 163,365,748.35 - Step 4: Simplify right side
238,683,138.81x = 53,763,817,852,211,920 - Step 5: Solve for x
x = 53,763,817,852,211,920/238,683,138.81 - Step 6: Final answer
x = 225,251,846.95
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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.