Finding the Fourth Proportional to 258,701,830.32, 357,009,975.92 and 147,192,668.44
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Solution
The fourth proportional to 258,701,830.32, 357,009,975.92 and 147,192,668.44 is: 203,126,707.49
Step by Step Solution
- Step 1: Write the proportion equation
258,701,830.32 : 357,009,975.92 = 147,192,668.44 : x - Step 2: Convert to fraction form
258,701,830.32/357,009,975.92 = 147,192,668.44/x - Step 3: Cross multiply
258,701,830.32x = 357,009,975.92 × 147,192,668.44 - Step 4: Simplify right side
258,701,830.32x = 52,549,251,015,364,944 - Step 5: Solve for x
x = 52,549,251,015,364,944/258,701,830.32 - Step 6: Final answer
x = 203,126,707.49
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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.