Finding the Fourth Proportional to 135,191,418.54, 186,564,206.79 and 73,311,740.70
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Solution
The fourth proportional to 135,191,418.54, 186,564,206.79 and 73,311,740.70 is: 101,170,228.85
Step by Step Solution
- Step 1: Write the proportion equation
135,191,418.54 : 186,564,206.79 = 73,311,740.70 : x - Step 2: Convert to fraction form
135,191,418.54/186,564,206.79 = 73,311,740.70/x - Step 3: Cross multiply
135,191,418.54x = 186,564,206.79 × 73,311,740.70 - Step 4: Simplify right side
135,191,418.54x = 13,677,346,752,089,660 - Step 5: Solve for x
x = 13,677,346,752,089,660/135,191,418.54 - Step 6: Final answer
x = 101,170,228.85
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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.