Finding the Fourth Proportional to 1,611,390,992.40, 2,417,085,919.66 and 430,940,791.53
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Solution
The fourth proportional to 1,611,390,992.40, 2,417,085,919.66 and 430,940,791.53 is: 646,411,035.14
Step by Step Solution
- Step 1: Write the proportion equation
1,611,390,992.40 : 2,417,085,919.66 = 430,940,791.53 : x - Step 2: Convert to fraction form
1,611,390,992.40/2,417,085,919.66 = 430,940,791.53/x - Step 3: Cross multiply
1,611,390,992.40x = 2,417,085,919.66 × 430,940,791.53 - Step 4: Simplify right side
1,611,390,992.40x = 1,041,620,919,414,858,624 - Step 5: Solve for x
x = 1,041,620,919,414,858,624/1,611,390,992.40 - Step 6: Final answer
x = 646,411,035.14
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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.