Finding the Fourth Proportional to 13,291,207.60, 19,936,811.40 and 7,606,757.20
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Solution
The fourth proportional to 13,291,207.60, 19,936,811.40 and 7,606,757.20 is: 11,410,135.80
Step by Step Solution
- Step 1: Write the proportion equation
13,291,207.60 : 19,936,811.40 = 7,606,757.20 : x - Step 2: Convert to fraction form
13,291,207.60/19,936,811.40 = 7,606,757.20/x - Step 3: Cross multiply
13,291,207.60x = 19,936,811.40 × 7,606,757.20 - Step 4: Simplify right side
13,291,207.60x = 151,654,483,661,992.06 - Step 5: Solve for x
x = 151,654,483,661,992.06/13,291,207.60 - Step 6: Final answer
x = 11,410,135.80
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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.