Finding the Fourth Proportional to 2,989,873.62, 4,124,590.56 and 1,956,926.66
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Solution
The fourth proportional to 2,989,873.62, 4,124,590.56 and 1,956,926.66 is: 2,699,619.53
Step by Step Solution
- Step 1: Write the proportion equation
2,989,873.62 : 4,124,590.56 = 1,956,926.66 : x - Step 2: Convert to fraction form
2,989,873.62/4,124,590.56 = 1,956,926.66/x - Step 3: Cross multiply
2,989,873.62x = 4,124,590.56 × 1,956,926.66 - Step 4: Simplify right side
2,989,873.62x = 8,071,521,207,825.38 - Step 5: Solve for x
x = 8,071,521,207,825.38/2,989,873.62 - Step 6: Final answer
x = 2,699,619.53
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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.