Finding the Fourth Proportional to 7,517,781.72, 10,374,543.99 and 4,080,022.65
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Solution
The fourth proportional to 7,517,781.72, 10,374,543.99 and 4,080,022.65 is: 5,630,434.09
Step by Step Solution
- Step 1: Write the proportion equation
7,517,781.72 : 10,374,543.99 = 4,080,022.65 : x - Step 2: Convert to fraction form
7,517,781.72/10,374,543.99 = 4,080,022.65/x - Step 3: Cross multiply
7,517,781.72x = 10,374,543.99 × 4,080,022.65 - Step 4: Simplify right side
7,517,781.72x = 42,328,374,462,621.38 - Step 5: Solve for x
x = 42,328,374,462,621.38/7,517,781.72 - Step 6: Final answer
x = 5,630,434.09
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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.