Finding the Fourth Proportional to 8,455,972.68, 12,683,506.14 and 2,990,688.84
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Solution
The fourth proportional to 8,455,972.68, 12,683,506.14 and 2,990,688.84 is: 4,485,873.09
Step by Step Solution
- Step 1: Write the proportion equation
8,455,972.68 : 12,683,506.14 = 2,990,688.84 : x - Step 2: Convert to fraction form
8,455,972.68/12,683,506.14 = 2,990,688.84/x - Step 3: Cross multiply
8,455,972.68x = 12,683,506.14 × 2,990,688.84 - Step 4: Simplify right side
8,455,972.68x = 37,932,420,264,969.48 - Step 5: Solve for x
x = 37,932,420,264,969.48/8,455,972.68 - Step 6: Final answer
x = 4,485,873.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.