Finding the Fourth Proportional to 112,331,449.60, 168,497,174.40 and 91,924,115.20
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Solution
The fourth proportional to 112,331,449.60, 168,497,174.40 and 91,924,115.20 is: 137,886,172.80
Step by Step Solution
- Step 1: Write the proportion equation
112,331,449.60 : 168,497,174.40 = 91,924,115.20 : x - Step 2: Convert to fraction form
112,331,449.60/168,497,174.40 = 91,924,115.20/x - Step 3: Cross multiply
112,331,449.60x = 168,497,174.40 × 91,924,115.20 - Step 4: Simplify right side
112,331,449.60x = 15,488,953,670,420,092 - Step 5: Solve for x
x = 15,488,953,670,420,092/112,331,449.60 - Step 6: Final answer
x = 137,886,172.80
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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.