Finding the Fourth Proportional to 71,946,257.68, 107,901,409.20 and 28,235,893.96
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Solution
The fourth proportional to 71,946,257.68, 107,901,409.20 and 28,235,893.96 is: 42,346,785.59
Step by Step Solution
- Step 1: Write the proportion equation
71,946,257.68 : 107,901,409.20 = 28,235,893.96 : x - Step 2: Convert to fraction form
71,946,257.68/107,901,409.20 = 28,235,893.96/x - Step 3: Cross multiply
71,946,257.68x = 107,901,409.20 × 28,235,893.96 - Step 4: Simplify right side
71,946,257.68x = 3,046,692,748,305,768.50 - Step 5: Solve for x
x = 3,046,692,748,305,768.50/71,946,257.68 - Step 6: Final answer
x = 42,346,785.59
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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.