Finding the Fourth Proportional to 70,340,096.15, 97,069,902.64 and 38,978,668.99
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Solution
The fourth proportional to 70,340,096.15, 97,069,902.64 and 38,978,668.99 is: 53,790,879.04
Step by Step Solution
- Step 1: Write the proportion equation
70,340,096.15 : 97,069,902.64 = 38,978,668.99 : x - Step 2: Convert to fraction form
70,340,096.15/97,069,902.64 = 38,978,668.99/x - Step 3: Cross multiply
70,340,096.15x = 97,069,902.64 × 38,978,668.99 - Step 4: Simplify right side
70,340,096.15x = 3,783,655,603,919,978 - Step 5: Solve for x
x = 3,783,655,603,919,978/70,340,096.15 - Step 6: Final answer
x = 53,790,879.04
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.