Finding the Fourth Proportional to 26,458,841.60, 39,660,268.80 and 10,278,540.80
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Solution
The fourth proportional to 26,458,841.60, 39,660,268.80 and 10,278,540.80 is: 15,406,936.45
Step by Step Solution
- Step 1: Write the proportion equation
26,458,841.60 : 39,660,268.80 = 10,278,540.80 : x - Step 2: Convert to fraction form
26,458,841.60/39,660,268.80 = 10,278,540.80/x - Step 3: Cross multiply
26,458,841.60x = 39,660,268.80 × 10,278,540.80 - Step 4: Simplify right side
26,458,841.60x = 407,649,690,999,767.06 - Step 5: Solve for x
x = 407,649,690,999,767.06/26,458,841.60 - Step 6: Final answer
x = 15,406,936.45
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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.