Finding the Fourth Proportional to 7,887,121.47, 10,886,043.74 and 4,624,987.14
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Solution
The fourth proportional to 7,887,121.47, 10,886,043.74 and 4,624,987.14 is: 6,383,547.21
Step by Step Solution
- Step 1: Write the proportion equation
7,887,121.47 : 10,886,043.74 = 4,624,987.14 : x - Step 2: Convert to fraction form
7,887,121.47/10,886,043.74 = 4,624,987.14/x - Step 3: Cross multiply
7,887,121.47x = 10,886,043.74 × 4,624,987.14 - Step 4: Simplify right side
7,887,121.47x = 50,347,812,279,852.56 - Step 5: Solve for x
x = 50,347,812,279,852.56/7,887,121.47 - Step 6: Final answer
x = 6,383,547.21
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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.