Finding the Fourth Proportional to 18,440,691.05, 27,658,516.74 and 5,488,840.68
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Solution
The fourth proportional to 18,440,691.05, 27,658,516.74 and 5,488,840.68 is: 8,232,510.99
Step by Step Solution
- Step 1: Write the proportion equation
18,440,691.05 : 27,658,516.74 = 5,488,840.68 : x - Step 2: Convert to fraction form
18,440,691.05/27,658,516.74 = 5,488,840.68/x - Step 3: Cross multiply
18,440,691.05x = 27,658,516.74 × 5,488,840.68 - Step 4: Simplify right side
18,440,691.05x = 151,813,191,791,881.41 - Step 5: Solve for x
x = 151,813,191,791,881.41/18,440,691.05 - Step 6: Final answer
x = 8,232,510.99
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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.