Finding the Fourth Proportional to 100,355,309.75, 138,479,094.99 and 55,703,164.10
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Solution
The fourth proportional to 100,355,309.75, 138,479,094.99 and 55,703,164.10 is: 76,864,131.78
Step by Step Solution
- Step 1: Write the proportion equation
100,355,309.75 : 138,479,094.99 = 55,703,164.10 : x - Step 2: Convert to fraction form
100,355,309.75/138,479,094.99 = 55,703,164.10/x - Step 3: Cross multiply
100,355,309.75x = 138,479,094.99 × 55,703,164.10 - Step 4: Simplify right side
100,355,309.75x = 7,713,723,753,396,096 - Step 5: Solve for x
x = 7,713,723,753,396,096/100,355,309.75 - Step 6: Final answer
x = 76,864,131.78
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.