Finding the Fourth Proportional to 149,958,814.08, 206,987,157.36 and 87,249,662.40
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Solution
The fourth proportional to 149,958,814.08, 206,987,157.36 and 87,249,662.40 is: 120,430,130.84
Step by Step Solution
- Step 1: Write the proportion equation
149,958,814.08 : 206,987,157.36 = 87,249,662.40 : x - Step 2: Convert to fraction form
149,958,814.08/206,987,157.36 = 87,249,662.40/x - Step 3: Cross multiply
149,958,814.08x = 206,987,157.36 × 87,249,662.40 - Step 4: Simplify right side
149,958,814.08x = 18,059,559,600,795,676 - Step 5: Solve for x
x = 18,059,559,600,795,676/149,958,814.08 - Step 6: Final answer
x = 120,430,130.84
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.