Finding the Fourth Proportional to 135,327,138.96, 186,751,636.40 and 73,447,478.40
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Solution
The fourth proportional to 135,327,138.96, 186,751,636.40 and 73,447,478.40 is: 101,357,620.40
Step by Step Solution
- Step 1: Write the proportion equation
135,327,138.96 : 186,751,636.40 = 73,447,478.40 : x - Step 2: Convert to fraction form
135,327,138.96/186,751,636.40 = 73,447,478.40/x - Step 3: Cross multiply
135,327,138.96x = 186,751,636.40 × 73,447,478.40 - Step 4: Simplify right side
135,327,138.96x = 13,716,436,780,653,656 - Step 5: Solve for x
x = 13,716,436,780,653,656/135,327,138.96 - Step 6: Final answer
x = 101,357,620.40
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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.