Finding the Fourth Proportional to 7,236,278.95, 9,990,738.27 and 4,485,905.62
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Solution
The fourth proportional to 7,236,278.95, 9,990,738.27 and 4,485,905.62 is: 6,193,446.83
Step by Step Solution
- Step 1: Write the proportion equation
7,236,278.95 : 9,990,738.27 = 4,485,905.62 : x - Step 2: Convert to fraction form
7,236,278.95/9,990,738.27 = 4,485,905.62/x - Step 3: Cross multiply
7,236,278.95x = 9,990,738.27 × 4,485,905.62 - Step 4: Simplify right side
7,236,278.95x = 44,817,508,953,342.08 - Step 5: Solve for x
x = 44,817,508,953,342.08/7,236,278.95 - Step 6: Final answer
x = 6,193,446.83
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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.