Finding the Fourth Proportional to 212,139,162.81, 318,256,620.84 and 64,599,921
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Solution
The fourth proportional to 212,139,162.81, 318,256,620.84 and 64,599,921 is: 96,914,460.73
Step by Step Solution
- Step 1: Write the proportion equation
212,139,162.81 : 318,256,620.84 = 64,599,921 : x - Step 2: Convert to fraction form
212,139,162.81/318,256,620.84 = 64,599,921/x - Step 3: Cross multiply
212,139,162.81x = 318,256,620.84 × 64,599,921 - Step 4: Simplify right side
212,139,162.81x = 20,559,352,563,990,952 - Step 5: Solve for x
x = 20,559,352,563,990,952/212,139,162.81 - Step 6: Final answer
x = 96,914,460.73
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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.