Finding the Fourth Proportional to 30,354,630.64, 41,889,515.63 and 16,415,985.44
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Solution
The fourth proportional to 30,354,630.64, 41,889,515.63 and 16,415,985.44 is: 22,654,127.70
Step by Step Solution
- Step 1: Write the proportion equation
30,354,630.64 : 41,889,515.63 = 16,415,985.44 : x - Step 2: Convert to fraction form
30,354,630.64/41,889,515.63 = 16,415,985.44/x - Step 3: Cross multiply
30,354,630.64x = 41,889,515.63 × 16,415,985.44 - Step 4: Simplify right side
30,354,630.64x = 687,657,678,785,716.25 - Step 5: Solve for x
x = 687,657,678,785,716.25/30,354,630.64 - Step 6: Final answer
x = 22,654,127.70
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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.