Finding the Fourth Proportional to 19,417,538.40, 29,102,979.60 and 8,052,136.80
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Solution
The fourth proportional to 19,417,538.40, 29,102,979.60 and 8,052,136.80 is: 12,068,531.46
Step by Step Solution
- Step 1: Write the proportion equation
19,417,538.40 : 29,102,979.60 = 8,052,136.80 : x - Step 2: Convert to fraction form
19,417,538.40/29,102,979.60 = 8,052,136.80/x - Step 3: Cross multiply
19,417,538.40x = 29,102,979.60 × 8,052,136.80 - Step 4: Simplify right side
19,417,538.40x = 234,341,173,026,809.28 - Step 5: Solve for x
x = 234,341,173,026,809.28/19,417,538.40 - Step 6: Final answer
x = 12,068,531.46
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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.