Finding the Fourth Proportional to 21,455,730.60, 32,197,906.05 and 7,808,873.18
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Solution
The fourth proportional to 21,455,730.60, 32,197,906.05 and 7,808,873.18 is: 11,718,517.99
Step by Step Solution
- Step 1: Write the proportion equation
21,455,730.60 : 32,197,906.05 = 7,808,873.18 : x - Step 2: Convert to fraction form
21,455,730.60/32,197,906.05 = 7,808,873.18/x - Step 3: Cross multiply
21,455,730.60x = 32,197,906.05 × 7,808,873.18 - Step 4: Simplify right side
21,455,730.60x = 251,429,364,966,960.38 - Step 5: Solve for x
x = 251,429,364,966,960.38/21,455,730.60 - Step 6: Final answer
x = 11,718,517.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.