Finding the Fourth Proportional to 4,988,479.46, 6,884,111.69 and 2,696,640.14
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Solution
The fourth proportional to 4,988,479.46, 6,884,111.69 and 2,696,640.14 is: 3,721,368.81
Step by Step Solution
- Step 1: Write the proportion equation
4,988,479.46 : 6,884,111.69 = 2,696,640.14 : x - Step 2: Convert to fraction form
4,988,479.46/6,884,111.69 = 2,696,640.14/x - Step 3: Cross multiply
4,988,479.46x = 6,884,111.69 × 2,696,640.14 - Step 4: Simplify right side
4,988,479.46x = 18,563,971,863,593.48 - Step 5: Solve for x
x = 18,563,971,863,593.48/4,988,479.46 - Step 6: Final answer
x = 3,721,368.81
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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.