Finding the Fourth Proportional to 239,746,963.08, 330,850,809.72 and 129,738,676.08
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Solution
The fourth proportional to 239,746,963.08, 330,850,809.72 and 129,738,676.08 is: 179,039,373.35
Step by Step Solution
- Step 1: Write the proportion equation
239,746,963.08 : 330,850,809.72 = 129,738,676.08 : x - Step 2: Convert to fraction form
239,746,963.08/330,850,809.72 = 129,738,676.08/x - Step 3: Cross multiply
239,746,963.08x = 330,850,809.72 × 129,738,676.08 - Step 4: Simplify right side
239,746,963.08x = 42,924,146,033,068,800 - Step 5: Solve for x
x = 42,924,146,033,068,800/239,746,963.08 - Step 6: Final answer
x = 179,039,373.35
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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.