Finding the Fourth Proportional to 10,257,670.82, 15,385,369.07 and 2,581,317.74
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Solution
The fourth proportional to 10,257,670.82, 15,385,369.07 and 2,581,317.74 is: 3,871,690.44
Step by Step Solution
- Step 1: Write the proportion equation
10,257,670.82 : 15,385,369.07 = 2,581,317.74 : x - Step 2: Convert to fraction form
10,257,670.82/15,385,369.07 = 2,581,317.74/x - Step 3: Cross multiply
10,257,670.82x = 15,385,369.07 × 2,581,317.74 - Step 4: Simplify right side
10,257,670.82x = 39,714,526,091,479.43 - Step 5: Solve for x
x = 39,714,526,091,479.43/10,257,670.82 - Step 6: Final answer
x = 3,871,690.44
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.