Finding the Fourth Proportional to 238,823,673.41, 329,590,235.05 and 143,483,342.49
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Solution
The fourth proportional to 238,823,673.41, 329,590,235.05 and 143,483,342.49 is: 198,015,162.82
Step by Step Solution
- Step 1: Write the proportion equation
238,823,673.41 : 329,590,235.05 = 143,483,342.49 : x - Step 2: Convert to fraction form
238,823,673.41/329,590,235.05 = 143,483,342.49/x - Step 3: Cross multiply
238,823,673.41x = 329,590,235.05 × 143,483,342.49 - Step 4: Simplify right side
238,823,673.41x = 47,290,708,576,680,048 - Step 5: Solve for x
x = 47,290,708,576,680,048/238,823,673.41 - Step 6: Final answer
x = 198,015,162.82
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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.