Finding the Fourth Proportional to 7,407,089.30, 11,102,818.12 and 3,994,447.12
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Solution
The fourth proportional to 7,407,089.30, 11,102,818.12 and 3,994,447.12 is: 5,987,455.81
Step by Step Solution
- Step 1: Write the proportion equation
7,407,089.30 : 11,102,818.12 = 3,994,447.12 : x - Step 2: Convert to fraction form
7,407,089.30/11,102,818.12 = 3,994,447.12/x - Step 3: Cross multiply
7,407,089.30x = 11,102,818.12 × 3,994,447.12 - Step 4: Simplify right side
7,407,089.30x = 44,349,619,863,317.81 - Step 5: Solve for x
x = 44,349,619,863,317.81/7,407,089.30 - Step 6: Final answer
x = 5,987,455.81
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1.5x scale
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.