Finding the Fourth Proportional to 156,081,239.99, 215,405,338.16 and 86,488,450.55
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Solution
The fourth proportional to 156,081,239.99, 215,405,338.16 and 86,488,450.55 is: 119,361,391.15
Step by Step Solution
- Step 1: Write the proportion equation
156,081,239.99 : 215,405,338.16 = 86,488,450.55 : x - Step 2: Convert to fraction form
156,081,239.99/215,405,338.16 = 86,488,450.55/x - Step 3: Cross multiply
156,081,239.99x = 215,405,338.16 × 86,488,450.55 - Step 4: Simplify right side
156,081,239.99x = 18,630,073,937,657,188 - Step 5: Solve for x
x = 18,630,073,937,657,188/156,081,239.99 - Step 6: Final answer
x = 119,361,391.15
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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.