Finding the Fourth Proportional to 449,076,257.70, 673,614,386.55 and 328,143,905.70
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Solution
The fourth proportional to 449,076,257.70, 673,614,386.55 and 328,143,905.70 is: 492,215,858.55
Step by Step Solution
- Step 1: Write the proportion equation
449,076,257.70 : 673,614,386.55 = 328,143,905.70 : x - Step 2: Convert to fraction form
449,076,257.70/673,614,386.55 = 328,143,905.70/x - Step 3: Cross multiply
449,076,257.70x = 673,614,386.55 × 328,143,905.70 - Step 4: Simplify right side
449,076,257.70x = 221,042,455,738,226,528 - Step 5: Solve for x
x = 221,042,455,738,226,528/449,076,257.70 - Step 6: Final answer
x = 492,215,858.55
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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.