Finding the Fourth Proportional to 71,639,631.60, 107,459,381.78 and 22,455,838.68
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Solution
The fourth proportional to 71,639,631.60, 107,459,381.78 and 22,455,838.68 is: 33,683,737.45
Step by Step Solution
- Step 1: Write the proportion equation
71,639,631.60 : 107,459,381.78 = 22,455,838.68 : x - Step 2: Convert to fraction form
71,639,631.60/107,459,381.78 = 22,455,838.68/x - Step 3: Cross multiply
71,639,631.60x = 107,459,381.78 × 22,455,838.68 - Step 4: Simplify right side
71,639,631.60x = 2,413,090,541,599,595 - Step 5: Solve for x
x = 2,413,090,541,599,595/71,639,631.60 - Step 6: Final answer
x = 33,683,737.45
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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.