Finding the Fourth Proportional to 245,813,943.68, 339,219,283.39 and 134,302,388.51
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Solution
The fourth proportional to 245,813,943.68, 339,219,283.39 and 134,302,388.51 is: 185,335,133.18
Step by Step Solution
- Step 1: Write the proportion equation
245,813,943.68 : 339,219,283.39 = 134,302,388.51 : x - Step 2: Convert to fraction form
245,813,943.68/339,219,283.39 = 134,302,388.51/x - Step 3: Cross multiply
245,813,943.68x = 339,219,283.39 × 134,302,388.51 - Step 4: Simplify right side
245,813,943.68x = 45,557,959,988,439,856 - Step 5: Solve for x
x = 45,557,959,988,439,856/245,813,943.68 - Step 6: Final answer
x = 185,335,133.18
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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.