Finding the Fourth Proportional to 239,746,971.26, 330,850,820.76 and 129,738,684.26
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Solution
The fourth proportional to 239,746,971.26, 330,850,820.76 and 129,738,684.26 is: 179,039,384.51
Step by Step Solution
- Step 1: Write the proportion equation
239,746,971.26 : 330,850,820.76 = 129,738,684.26 : x - Step 2: Convert to fraction form
239,746,971.26/330,850,820.76 = 129,738,684.26/x - Step 3: Cross multiply
239,746,971.26x = 330,850,820.76 × 129,738,684.26 - Step 4: Simplify right side
239,746,971.26x = 42,924,150,171,743,496 - Step 5: Solve for x
x = 42,924,150,171,743,496/239,746,971.26 - Step 6: Final answer
x = 179,039,384.51
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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.