Finding the Fourth Proportional to 319,727,281.70, 479,590,922.55 and 77,390,185.70
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Solution
The fourth proportional to 319,727,281.70, 479,590,922.55 and 77,390,185.70 is: 116,085,278.55
Step by Step Solution
- Step 1: Write the proportion equation
319,727,281.70 : 479,590,922.55 = 77,390,185.70 : x - Step 2: Convert to fraction form
319,727,281.70/479,590,922.55 = 77,390,185.70/x - Step 3: Cross multiply
319,727,281.70x = 479,590,922.55 × 77,390,185.70 - Step 4: Simplify right side
319,727,281.70x = 37,115,630,556,178,816 - Step 5: Solve for x
x = 37,115,630,556,178,816/319,727,281.70 - Step 6: Final answer
x = 116,085,278.55
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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.