Finding the Fourth Proportional to 257,047,154.23, 385,583,131.64 and 84,520,147.99
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Solution
The fourth proportional to 257,047,154.23, 385,583,131.64 and 84,520,147.99 is: 126,784,299.35
Step by Step Solution
- Step 1: Write the proportion equation
257,047,154.23 : 385,583,131.64 = 84,520,147.99 : x - Step 2: Convert to fraction form
257,047,154.23/385,583,131.64 = 84,520,147.99/x - Step 3: Cross multiply
257,047,154.23x = 385,583,131.64 × 84,520,147.99 - Step 4: Simplify right side
257,047,154.23x = 32,589,543,348,660,448 - Step 5: Solve for x
x = 32,589,543,348,660,448/257,047,154.23 - Step 6: Final answer
x = 126,784,299.35
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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.