Finding the Fourth Proportional to 7,838,272.21, 11,758,922.45 and 2,980,200.99
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Solution
The fourth proportional to 7,838,272.21, 11,758,922.45 and 2,980,200.99 is: 4,470,877.17
Step by Step Solution
- Step 1: Write the proportion equation
7,838,272.21 : 11,758,922.45 = 2,980,200.99 : x - Step 2: Convert to fraction form
7,838,272.21/11,758,922.45 = 2,980,200.99/x - Step 3: Cross multiply
7,838,272.21x = 11,758,922.45 × 2,980,200.99 - Step 4: Simplify right side
7,838,272.21x = 35,043,952,301,050.00 - Step 5: Solve for x
x = 35,043,952,301,050.00/7,838,272.21 - Step 6: Final answer
x = 4,470,877.17
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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.