Finding the Fourth Proportional to 346,616,847.40, 478,382,587.92 and 219,469,343.84
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Solution
The fourth proportional to 346,616,847.40, 478,382,587.92 and 219,469,343.84 is: 302,900,200.79
Step by Step Solution
- Step 1: Write the proportion equation
346,616,847.40 : 478,382,587.92 = 219,469,343.84 : x - Step 2: Convert to fraction form
346,616,847.40/478,382,587.92 = 219,469,343.84/x - Step 3: Cross multiply
346,616,847.40x = 478,382,587.92 × 219,469,343.84 - Step 4: Simplify right side
346,616,847.40x = 104,990,312,675,283,520 - Step 5: Solve for x
x = 104,990,312,675,283,520/346,616,847.40 - Step 6: Final answer
x = 302,900,200.79
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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.