Finding the Fourth Proportional to 149,287,631.20, 223,931,446.80 and 84,717,549.70
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Solution
The fourth proportional to 149,287,631.20, 223,931,446.80 and 84,717,549.70 is: 127,076,324.55
Step by Step Solution
- Step 1: Write the proportion equation
149,287,631.20 : 223,931,446.80 = 84,717,549.70 : x - Step 2: Convert to fraction form
149,287,631.20/223,931,446.80 = 84,717,549.70/x - Step 3: Cross multiply
149,287,631.20x = 223,931,446.80 × 84,717,549.70 - Step 4: Simplify right side
149,287,631.20x = 18,970,923,473,671,908 - Step 5: Solve for x
x = 18,970,923,473,671,908/149,287,631.20 - Step 6: Final answer
x = 127,076,324.55
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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.