Finding the Fourth Proportional to 2,167,717.68, 2,992,438.72 and 1,547,989.92
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Solution
The fourth proportional to 2,167,717.68, 2,992,438.72 and 1,547,989.92 is: 2,136,931.86
Step by Step Solution
- Step 1: Write the proportion equation
2,167,717.68 : 2,992,438.72 = 1,547,989.92 : x - Step 2: Convert to fraction form
2,167,717.68/2,992,438.72 = 1,547,989.92/x - Step 3: Cross multiply
2,167,717.68x = 2,992,438.72 × 1,547,989.92 - Step 4: Simplify right side
2,167,717.68x = 4,632,264,959,815.51 - Step 5: Solve for x
x = 4,632,264,959,815.51/2,167,717.68 - Step 6: Final answer
x = 2,136,931.86
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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.