Finding the Fourth Proportional to 4,668,573.75, 6,447,946.19 and 3,138,023.67
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Solution
The fourth proportional to 4,668,573.75, 6,447,946.19 and 3,138,023.67 is: 4,334,044.79
Step by Step Solution
- Step 1: Write the proportion equation
4,668,573.75 : 6,447,946.19 = 3,138,023.67 : x - Step 2: Convert to fraction form
4,668,573.75/6,447,946.19 = 3,138,023.67/x - Step 3: Cross multiply
4,668,573.75x = 6,447,946.19 × 3,138,023.67 - Step 4: Simplify right side
4,668,573.75x = 20,233,807,751,416.20 - Step 5: Solve for x
x = 20,233,807,751,416.20/4,668,573.75 - Step 6: Final answer
x = 4,334,044.79
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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.