Finding the Fourth Proportional to 7,768,302.56, 10,720,895.80 and 4,284,322.80
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Solution
The fourth proportional to 7,768,302.56, 10,720,895.80 and 4,284,322.80 is: 5,912,717.48
Step by Step Solution
- Step 1: Write the proportion equation
7,768,302.56 : 10,720,895.80 = 4,284,322.80 : x - Step 2: Convert to fraction form
7,768,302.56/10,720,895.80 = 4,284,322.80/x - Step 3: Cross multiply
7,768,302.56x = 10,720,895.80 × 4,284,322.80 - Step 4: Simplify right side
7,768,302.56x = 45,931,778,312,364.24 - Step 5: Solve for x
x = 45,931,778,312,364.24/7,768,302.56 - Step 6: Final answer
x = 5,912,717.48
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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.