Finding the Fourth Proportional to 319,687,412.42, 441,168,623.80 and 173,009,696.42
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Solution
The fourth proportional to 319,687,412.42, 441,168,623.80 and 173,009,696.42 is: 238,753,378.17
Step by Step Solution
- Step 1: Write the proportion equation
319,687,412.42 : 441,168,623.80 = 173,009,696.42 : x - Step 2: Convert to fraction form
319,687,412.42/441,168,623.80 = 173,009,696.42/x - Step 3: Cross multiply
319,687,412.42x = 441,168,623.80 × 173,009,696.42 - Step 4: Simplify right side
319,687,412.42x = 76,326,449,673,667,184 - Step 5: Solve for x
x = 76,326,449,673,667,184/319,687,412.42 - Step 6: Final answer
x = 238,753,378.17
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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.