Finding the Fourth Proportional to 13,448,835.12, 18,558,636.12 and 7,649,027.76
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Solution
The fourth proportional to 13,448,835.12, 18,558,636.12 and 7,649,027.76 is: 10,555,228.14
Step by Step Solution
- Step 1: Write the proportion equation
13,448,835.12 : 18,558,636.12 = 7,649,027.76 : x - Step 2: Convert to fraction form
13,448,835.12/18,558,636.12 = 7,649,027.76/x - Step 3: Cross multiply
13,448,835.12x = 18,558,636.12 × 7,649,027.76 - Step 4: Simplify right side
13,448,835.12x = 141,955,522,869,618.69 - Step 5: Solve for x
x = 141,955,522,869,618.69/13,448,835.12 - Step 6: Final answer
x = 10,555,228.14
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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.