Finding the Fourth Proportional to 71,790,289.23, 107,712,573.18 and 28,102,270.62
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Solution
The fourth proportional to 71,790,289.23, 107,712,573.18 and 28,102,270.62 is: 42,164,029.61
Step by Step Solution
- Step 1: Write the proportion equation
71,790,289.23 : 107,712,573.18 = 28,102,270.62 : x - Step 2: Convert to fraction form
71,790,289.23/107,712,573.18 = 28,102,270.62/x - Step 3: Cross multiply
71,790,289.23x = 107,712,573.18 × 28,102,270.62 - Step 4: Simplify right side
71,790,289.23x = 3,026,967,880,680,914.50 - Step 5: Solve for x
x = 3,026,967,880,680,914.50/71,790,289.23 - Step 6: Final answer
x = 42,164,029.61
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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.