Finding the Fourth Proportional to 258,313,835.44, 356,475,880.92 and 140,838,212.80
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Solution
The fourth proportional to 258,313,835.44, 356,475,880.92 and 140,838,212.80 is: 194,358,253.75
Step by Step Solution
- Step 1: Write the proportion equation
258,313,835.44 : 356,475,880.92 = 140,838,212.80 : x - Step 2: Convert to fraction form
258,313,835.44/356,475,880.92 = 140,838,212.80/x - Step 3: Cross multiply
258,313,835.44x = 356,475,880.92 × 140,838,212.80 - Step 4: Simplify right side
258,313,835.44x = 50,205,425,975,078,424 - Step 5: Solve for x
x = 50,205,425,975,078,424/258,313,835.44 - Step 6: Final answer
x = 194,358,253.75
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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.