Finding the Fourth Proportional to 7,136,873.47, 9,848,621.58 and 3,873,618.10
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Solution
The fourth proportional to 7,136,873.47, 9,848,621.58 and 3,873,618.10 is: 5,345,449.79
Step by Step Solution
- Step 1: Write the proportion equation
7,136,873.47 : 9,848,621.58 = 3,873,618.10 : x - Step 2: Convert to fraction form
7,136,873.47/9,848,621.58 = 3,873,618.10/x - Step 3: Cross multiply
7,136,873.47x = 9,848,621.58 × 3,873,618.10 - Step 4: Simplify right side
7,136,873.47x = 38,149,798,812,338.60 - Step 5: Solve for x
x = 38,149,798,812,338.60/7,136,873.47 - Step 6: Final answer
x = 5,345,449.79
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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.