Finding the Fourth Proportional to 135,217,231.39, 186,604,003.29 and 76,478,747.12
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Solution
The fourth proportional to 135,217,231.39, 186,604,003.29 and 76,478,747.12 is: 105,543,060.10
Step by Step Solution
- Step 1: Write the proportion equation
135,217,231.39 : 186,604,003.29 = 76,478,747.12 : x - Step 2: Convert to fraction form
135,217,231.39/186,604,003.29 = 76,478,747.12/x - Step 3: Cross multiply
135,217,231.39x = 186,604,003.29 × 76,478,747.12 - Step 4: Simplify right side
135,217,231.39x = 14,271,240,379,195,558 - Step 5: Solve for x
x = 14,271,240,379,195,558/135,217,231.39 - Step 6: Final answer
x = 105,543,060.10
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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.