Finding the Fourth Proportional to 7,141,129.98, 9,854,728.56 and 3,877,917.81
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Solution
The fourth proportional to 7,141,129.98, 9,854,728.56 and 3,877,917.81 is: 5,351,509.85
Step by Step Solution
- Step 1: Write the proportion equation
7,141,129.98 : 9,854,728.56 = 3,877,917.81 : x - Step 2: Convert to fraction form
7,141,129.98/9,854,728.56 = 3,877,917.81/x - Step 3: Cross multiply
7,141,129.98x = 9,854,728.56 × 3,877,917.81 - Step 4: Simplify right side
7,141,129.98x = 38,215,827,395,539.66 - Step 5: Solve for x
x = 38,215,827,395,539.66/7,141,129.98 - Step 6: Final answer
x = 5,351,509.85
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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.