Finding the Fourth Proportional to 10,672,431.63, 14,727,888.09 and 5,777,618.10
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Solution
The fourth proportional to 10,672,431.63, 14,727,888.09 and 5,777,618.10 is: 7,973,076.40
Step by Step Solution
- Step 1: Write the proportion equation
10,672,431.63 : 14,727,888.09 = 5,777,618.10 : x - Step 2: Convert to fraction form
10,672,431.63/14,727,888.09 = 5,777,618.10/x - Step 3: Cross multiply
10,672,431.63x = 14,727,888.09 × 5,777,618.10 - Step 4: Simplify right side
10,672,431.63x = 85,092,112,803,558.42 - Step 5: Solve for x
x = 85,092,112,803,558.42/10,672,431.63 - Step 6: Final answer
x = 7,973,076.40
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1.5x scale
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.