Finding the Fourth Proportional to 18,389,603.60, 27,584,405.40 and 16,405,557.20
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Solution
The fourth proportional to 18,389,603.60, 27,584,405.40 and 16,405,557.20 is: 24,608,335.80
Step by Step Solution
- Step 1: Write the proportion equation
18,389,603.60 : 27,584,405.40 = 16,405,557.20 : x - Step 2: Convert to fraction form
18,389,603.60/27,584,405.40 = 16,405,557.20/x - Step 3: Cross multiply
18,389,603.60x = 27,584,405.40 × 16,405,557.20 - Step 4: Simplify right side
18,389,603.60x = 452,537,540,617,688.81 - Step 5: Solve for x
x = 452,537,540,617,688.81/18,389,603.60 - Step 6: Final answer
x = 24,608,335.80
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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.