Finding the Fourth Proportional to 20,298,342.67, 30,445,982.64 and 6,464,742.40
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Solution
The fourth proportional to 20,298,342.67, 30,445,982.64 and 6,464,742.40 is: 9,696,625.88
Step by Step Solution
- Step 1: Write the proportion equation
20,298,342.67 : 30,445,982.64 = 6,464,742.40 : x - Step 2: Convert to fraction form
20,298,342.67/30,445,982.64 = 6,464,742.40/x - Step 3: Cross multiply
20,298,342.67x = 30,445,982.64 × 6,464,742.40 - Step 4: Simplify right side
20,298,342.67x = 196,825,434,882,471.94 - Step 5: Solve for x
x = 196,825,434,882,471.94/20,298,342.67 - Step 6: Final answer
x = 9,696,625.88
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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.