Finding the Fourth Proportional to 120,690,840.64, 181,153,177.98 and 114,136,401.64
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Solution
The fourth proportional to 120,690,840.64, 181,153,177.98 and 114,136,401.64 is: 171,315,169.99
Step by Step Solution
- Step 1: Write the proportion equation
120,690,840.64 : 181,153,177.98 = 114,136,401.64 : x - Step 2: Convert to fraction form
120,690,840.64/181,153,177.98 = 114,136,401.64/x - Step 3: Cross multiply
120,690,840.64x = 181,153,177.98 × 114,136,401.64 - Step 4: Simplify right side
120,690,840.64x = 20,676,171,880,287,684 - Step 5: Solve for x
x = 20,676,171,880,287,684/120,690,840.64 - Step 6: Final answer
x = 171,315,169.99
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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.