Finding the Fourth Proportional to 138,618,090.08, 191,285,385.81 and 75,882,051.68
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Solution
The fourth proportional to 138,618,090.08, 191,285,385.81 and 75,882,051.68 is: 104,713,082.71
Step by Step Solution
- Step 1: Write the proportion equation
138,618,090.08 : 191,285,385.81 = 75,882,051.68 : x - Step 2: Convert to fraction form
138,618,090.08/191,285,385.81 = 75,882,051.68/x - Step 3: Cross multiply
138,618,090.08x = 191,285,385.81 × 75,882,051.68 - Step 4: Simplify right side
138,618,090.08x = 14,515,127,530,960,260 - Step 5: Solve for x
x = 14,515,127,530,960,260/138,618,090.08 - Step 6: Final answer
x = 104,713,082.71
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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.