Finding the Fourth Proportional to 38,551,184.78, 57,826,973.99 and 12,992,415.62
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Solution
The fourth proportional to 38,551,184.78, 57,826,973.99 and 12,992,415.62 is: 19,488,689.76
Step by Step Solution
- Step 1: Write the proportion equation
38,551,184.78 : 57,826,973.99 = 12,992,415.62 : x - Step 2: Convert to fraction form
38,551,184.78/57,826,973.99 = 12,992,415.62/x - Step 3: Cross multiply
38,551,184.78x = 57,826,973.99 × 12,992,415.62 - Step 4: Simplify right side
38,551,184.78x = 751,312,079,868,355.88 - Step 5: Solve for x
x = 751,312,079,868,355.88/38,551,184.78 - Step 6: Final answer
x = 19,488,689.76
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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.