Finding the Fourth Proportional to 11,860,172.70, 16,367,030.55 and 6,427,664.70
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Solution
The fourth proportional to 11,860,172.70, 16,367,030.55 and 6,427,664.70 is: 8,870,173.07
Step by Step Solution
- Step 1: Write the proportion equation
11,860,172.70 : 16,367,030.55 = 6,427,664.70 : x - Step 2: Convert to fraction form
11,860,172.70/16,367,030.55 = 6,427,664.70/x - Step 3: Cross multiply
11,860,172.70x = 16,367,030.55 × 6,427,664.70 - Step 4: Simplify right side
11,860,172.70x = 105,201,784,510,056.59 - Step 5: Solve for x
x = 105,201,784,510,056.59/11,860,172.70 - Step 6: Final answer
x = 8,870,173.07
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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.