Finding the Fourth Proportional to 6,315,916.21, 8,715,461.48 and 3,561,720.19
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Solution
The fourth proportional to 6,315,916.21, 8,715,461.48 and 3,561,720.19 is: 4,914,890.27
Step by Step Solution
- Step 1: Write the proportion equation
6,315,916.21 : 8,715,461.48 = 3,561,720.19 : x - Step 2: Convert to fraction form
6,315,916.21/8,715,461.48 = 3,561,720.19/x - Step 3: Cross multiply
6,315,916.21x = 8,715,461.48 × 3,561,720.19 - Step 4: Simplify right side
6,315,916.21x = 31,042,035,118,483.28 - Step 5: Solve for x
x = 31,042,035,118,483.28/6,315,916.21 - Step 6: Final answer
x = 4,914,890.27
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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.