Finding the Fourth Proportional to 56,685,645.50, 78,225,998.96 and 31,905,817.99
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Solution
The fourth proportional to 56,685,645.50, 78,225,998.96 and 31,905,817.99 is: 44,029,920.86
Step by Step Solution
- Step 1: Write the proportion equation
56,685,645.50 : 78,225,998.96 = 31,905,817.99 : x - Step 2: Convert to fraction form
56,685,645.50/78,225,998.96 = 31,905,817.99/x - Step 3: Cross multiply
56,685,645.50x = 78,225,998.96 × 31,905,817.99 - Step 4: Simplify right side
56,685,645.50x = 2,495,864,485,048,439.50 - Step 5: Solve for x
x = 2,495,864,485,048,439.50/56,685,645.50 - Step 6: Final answer
x = 44,029,920.86
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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.