Finding the Fourth Proportional to 28,626,197.40, 39,503,252.34 and 15,573,121.92
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Solution
The fourth proportional to 28,626,197.40, 39,503,252.34 and 15,573,121.92 is: 21,490,418.60
Step by Step Solution
- Step 1: Write the proportion equation
28,626,197.40 : 39,503,252.34 = 15,573,121.92 : x - Step 2: Convert to fraction form
28,626,197.40/39,503,252.34 = 15,573,121.92/x - Step 3: Cross multiply
28,626,197.40x = 39,503,252.34 × 15,573,121.92 - Step 4: Simplify right side
28,626,197.40x = 615,188,964,927,345.38 - Step 5: Solve for x
x = 615,188,964,927,345.38/28,626,197.40 - Step 6: Final answer
x = 21,490,418.60
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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.