Finding the Fourth Proportional to 57,970,863.41, 79,999,319.94 and 31,865,103.68
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Solution
The fourth proportional to 57,970,863.41, 79,999,319.94 and 31,865,103.68 is: 43,973,583.87
Step by Step Solution
- Step 1: Write the proportion equation
57,970,863.41 : 79,999,319.94 = 31,865,103.68 : x - Step 2: Convert to fraction form
57,970,863.41/79,999,319.94 = 31,865,103.68/x - Step 3: Cross multiply
57,970,863.41x = 79,999,319.94 × 31,865,103.68 - Step 4: Simplify right side
57,970,863.41x = 2,549,186,624,217,591.50 - Step 5: Solve for x
x = 2,549,186,624,217,591.50/57,970,863.41 - Step 6: Final answer
x = 43,973,583.87
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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.