Finding the Fourth Proportional to 18,831,708.48, 28,211,909.76 and 11,132,302.08
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Solution
The fourth proportional to 18,831,708.48, 28,211,909.76 and 11,132,302.08 is: 16,677,376.99
Step by Step Solution
- Step 1: Write the proportion equation
18,831,708.48 : 28,211,909.76 = 11,132,302.08 : x - Step 2: Convert to fraction form
18,831,708.48/28,211,909.76 = 11,132,302.08/x - Step 3: Cross multiply
18,831,708.48x = 28,211,909.76 × 11,132,302.08 - Step 4: Simplify right side
18,831,708.48x = 314,063,501,702,020.31 - Step 5: Solve for x
x = 314,063,501,702,020.31/18,831,708.48 - Step 6: Final answer
x = 16,677,376.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.