Finding the Fourth Proportional to 11,831,369.42, 16,328,036.49 and 6,672,848.78
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Solution
The fourth proportional to 11,831,369.42, 16,328,036.49 and 6,672,848.78 is: 9,208,952.45
Step by Step Solution
- Step 1: Write the proportion equation
11,831,369.42 : 16,328,036.49 = 6,672,848.78 : x - Step 2: Convert to fraction form
11,831,369.42/16,328,036.49 = 6,672,848.78/x - Step 3: Cross multiply
11,831,369.42x = 16,328,036.49 × 6,672,848.78 - Step 4: Simplify right side
11,831,369.42x = 108,954,518,372,091.98 - Step 5: Solve for x
x = 108,954,518,372,091.98/11,831,369.42 - Step 6: Final answer
x = 9,208,952.45
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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.