Finding the Fourth Proportional to 81,748,423.40, 122,601,730.62 and 24,227,277.80
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Solution
The fourth proportional to 81,748,423.40, 122,601,730.62 and 24,227,277.80 is: 36,334,721.37
Step by Step Solution
- Step 1: Write the proportion equation
81,748,423.40 : 122,601,730.62 = 24,227,277.80 : x - Step 2: Convert to fraction form
81,748,423.40/122,601,730.62 = 24,227,277.80/x - Step 3: Cross multiply
81,748,423.40x = 122,601,730.62 × 24,227,277.80 - Step 4: Simplify right side
81,748,423.40x = 2,970,306,186,491,506.50 - Step 5: Solve for x
x = 2,970,306,186,491,506.50/81,748,423.40 - Step 6: Final answer
x = 36,334,721.37
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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.