Finding the Fourth Proportional to 415,444,993.90, 623,167,490.85 and 173,076,405.10
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Solution
The fourth proportional to 415,444,993.90, 623,167,490.85 and 173,076,405.10 is: 259,614,607.65
Step by Step Solution
- Step 1: Write the proportion equation
415,444,993.90 : 623,167,490.85 = 173,076,405.10 : x - Step 2: Convert to fraction form
415,444,993.90/623,167,490.85 = 173,076,405.10/x - Step 3: Cross multiply
415,444,993.90x = 623,167,490.85 × 173,076,405.10 - Step 4: Simplify right side
415,444,993.90x = 107,855,589,091,505,136 - Step 5: Solve for x
x = 107,855,589,091,505,136/415,444,993.90 - Step 6: Final answer
x = 259,614,607.65
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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.