Finding the Fourth Proportional to 6,936,387.20, 9,572,143.80 and 3,838,916.58
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Solution
The fourth proportional to 6,936,387.20, 9,572,143.80 and 3,838,916.58 is: 5,297,665.84
Step by Step Solution
- Step 1: Write the proportion equation
6,936,387.20 : 9,572,143.80 = 3,838,916.58 : x - Step 2: Convert to fraction form
6,936,387.20/9,572,143.80 = 3,838,916.58/x - Step 3: Cross multiply
6,936,387.20x = 9,572,143.80 × 3,838,916.58 - Step 4: Simplify right side
6,936,387.20x = 36,746,661,539,964.21 - Step 5: Solve for x
x = 36,746,661,539,964.21/6,936,387.20 - Step 6: Final answer
x = 5,297,665.84
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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.