Finding the Fourth Proportional to 8,129,607.74, 12,183,781.11 and 3,331,679.66
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Solution
The fourth proportional to 8,129,607.74, 12,183,781.11 and 3,331,679.66 is: 4,993,162.89
Step by Step Solution
- Step 1: Write the proportion equation
8,129,607.74 : 12,183,781.11 = 3,331,679.66 : x - Step 2: Convert to fraction form
8,129,607.74/12,183,781.11 = 3,331,679.66/x - Step 3: Cross multiply
8,129,607.74x = 12,183,781.11 × 3,331,679.66 - Step 4: Simplify right side
8,129,607.74x = 40,592,455,706,079.22 - Step 5: Solve for x
x = 40,592,455,706,079.22/8,129,607.74 - Step 6: Final answer
x = 4,993,162.89
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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.