Finding the Fourth Proportional to 135,964,686.93, 203,926,540.13 and 87,121,856.79
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Solution
The fourth proportional to 135,964,686.93, 203,926,540.13 and 87,121,856.79 is: 130,669,655.68
Step by Step Solution
- Step 1: Write the proportion equation
135,964,686.93 : 203,926,540.13 = 87,121,856.79 : x - Step 2: Convert to fraction form
135,964,686.93/203,926,540.13 = 87,121,856.79/x - Step 3: Cross multiply
135,964,686.93x = 203,926,540.13 × 87,121,856.79 - Step 4: Simplify right side
135,964,686.93x = 17,766,458,825,816,656 - Step 5: Solve for x
x = 17,766,458,825,816,656/135,964,686.93 - Step 6: Final answer
x = 130,669,655.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.