Finding the Fourth Proportional to 7,630,666.53, 10,530,317.37 and 4,193,128.99
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Solution
The fourth proportional to 7,630,666.53, 10,530,317.37 and 4,193,128.99 is: 5,786,516.66
Step by Step Solution
- Step 1: Write the proportion equation
7,630,666.53 : 10,530,317.37 = 4,193,128.99 : x - Step 2: Convert to fraction form
7,630,666.53/10,530,317.37 = 4,193,128.99/x - Step 3: Cross multiply
7,630,666.53x = 10,530,317.37 × 4,193,128.99 - Step 4: Simplify right side
7,630,666.53x = 44,154,979,038,047.55 - Step 5: Solve for x
x = 44,154,979,038,047.55/7,630,666.53 - Step 6: Final answer
x = 5,786,516.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.