Finding the Fourth Proportional to 10,990,465.67, 15,156,917.90 and 6,860,880
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Solution
The fourth proportional to 10,990,465.67, 15,156,917.90 and 6,860,880 is: 9,461,818.82
Step by Step Solution
- Step 1: Write the proportion equation
10,990,465.67 : 15,156,917.90 = 6,860,880 : x - Step 2: Convert to fraction form
10,990,465.67/15,156,917.90 = 6,860,880/x - Step 3: Cross multiply
10,990,465.67x = 15,156,917.90 × 6,860,880 - Step 4: Simplify right side
10,990,465.67x = 103,989,794,881,752 - Step 5: Solve for x
x = 103,989,794,881,752/10,990,465.67 - Step 6: Final answer
x = 9,461,818.82
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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.