Finding the Fourth Proportional to 20,068,948.62, 27,695,908.92 and 11,248,561.46
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Solution
The fourth proportional to 20,068,948.62, 27,695,908.92 and 11,248,561.46 is: 15,523,440.69
Step by Step Solution
- Step 1: Write the proportion equation
20,068,948.62 : 27,695,908.92 = 11,248,561.46 : x - Step 2: Convert to fraction form
20,068,948.62/27,695,908.92 = 11,248,561.46/x - Step 3: Cross multiply
20,068,948.62x = 27,695,908.92 × 11,248,561.46 - Step 4: Simplify right side
20,068,948.62x = 311,539,133,677,182.25 - Step 5: Solve for x
x = 311,539,133,677,182.25/20,068,948.62 - Step 6: Final answer
x = 15,523,440.69
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.