Finding the Fourth Proportional to 21,587,638.40, 32,381,457.60 and 8,127,486.08
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Solution
The fourth proportional to 21,587,638.40, 32,381,457.60 and 8,127,486.08 is: 12,191,229.12
Step by Step Solution
- Step 1: Write the proportion equation
21,587,638.40 : 32,381,457.60 = 8,127,486.08 : x - Step 2: Convert to fraction form
21,587,638.40/32,381,457.60 = 8,127,486.08/x - Step 3: Cross multiply
21,587,638.40x = 32,381,457.60 × 8,127,486.08 - Step 4: Simplify right side
21,587,638.40x = 263,179,845,894,110.22 - Step 5: Solve for x
x = 263,179,845,894,110.22/21,587,638.40 - Step 6: Final answer
x = 12,191,229.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.