Finding the Fourth Proportional to 70,349,153.55, 97,081,758.27 and 39,409,540.62
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Solution
The fourth proportional to 70,349,153.55, 97,081,758.27 and 39,409,540.62 is: 54,385,124.81
Step by Step Solution
- Step 1: Write the proportion equation
70,349,153.55 : 97,081,758.27 = 39,409,540.62 : x - Step 2: Convert to fraction form
70,349,153.55/97,081,758.27 = 39,409,540.62/x - Step 3: Cross multiply
70,349,153.55x = 97,081,758.27 × 39,409,540.62 - Step 4: Simplify right side
70,349,153.55x = 3,825,947,496,002,585.50 - Step 5: Solve for x
x = 3,825,947,496,002,585.50/70,349,153.55 - Step 6: Final answer
x = 54,385,124.81
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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.