Finding the Fourth Proportional to 239,746,972.26, 330,850,822.14 and 129,738,685.26
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Solution
The fourth proportional to 239,746,972.26, 330,850,822.14 and 129,738,685.26 is: 179,039,385.89
Step by Step Solution
- Step 1: Write the proportion equation
239,746,972.26 : 330,850,822.14 = 129,738,685.26 : x - Step 2: Convert to fraction form
239,746,972.26/330,850,822.14 = 129,738,685.26/x - Step 3: Cross multiply
239,746,972.26x = 330,850,822.14 × 129,738,685.26 - Step 4: Simplify right side
239,746,972.26x = 42,924,150,681,633,696 - Step 5: Solve for x
x = 42,924,150,681,633,696/239,746,972.26 - Step 6: Final answer
x = 179,039,385.89
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1.5x scale
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.