Finding the Fourth Proportional to 53,199,731.51, 73,415,596.32 and 28,753,445.51
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Solution
The fourth proportional to 53,199,731.51, 73,415,596.32 and 28,753,445.51 is: 39,679,736.88
Step by Step Solution
- Step 1: Write the proportion equation
53,199,731.51 : 73,415,596.32 = 28,753,445.51 : x - Step 2: Convert to fraction form
53,199,731.51/73,415,596.32 = 28,753,445.51/x - Step 3: Cross multiply
53,199,731.51x = 73,415,596.32 × 28,753,445.51 - Step 4: Simplify right side
53,199,731.51x = 2,110,951,348,187,737.25 - Step 5: Solve for x
x = 2,110,951,348,187,737.25/53,199,731.51 - Step 6: Final answer
x = 39,679,736.88
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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.