Finding the Fourth Proportional to 8,213,916.16, 11,330,653.98 and 4,775,777.20
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Solution
The fourth proportional to 8,213,916.16, 11,330,653.98 and 4,775,777.20 is: 6,587,926.87
Step by Step Solution
- Step 1: Write the proportion equation
8,213,916.16 : 11,330,653.98 = 4,775,777.20 : x - Step 2: Convert to fraction form
8,213,916.16/11,330,653.98 = 4,775,777.20/x - Step 3: Cross multiply
8,213,916.16x = 11,330,653.98 × 4,775,777.20 - Step 4: Simplify right side
8,213,916.16x = 54,112,678,938,773.26 - Step 5: Solve for x
x = 54,112,678,938,773.26/8,213,916.16 - Step 6: Final answer
x = 6,587,926.87
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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.