Finding the Fourth Proportional to 208,194,079.92, 287,304,322.68 and 115,374,398.64
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Solution
The fourth proportional to 208,194,079.92, 287,304,322.68 and 115,374,398.64 is: 159,214,726.32
Step by Step Solution
- Step 1: Write the proportion equation
208,194,079.92 : 287,304,322.68 = 115,374,398.64 : x - Step 2: Convert to fraction form
208,194,079.92/287,304,322.68 = 115,374,398.64/x - Step 3: Cross multiply
208,194,079.92x = 287,304,322.68 × 115,374,398.64 - Step 4: Simplify right side
208,194,079.92x = 33,147,563,455,877,516 - Step 5: Solve for x
x = 33,147,563,455,877,516/208,194,079.92 - Step 6: Final answer
x = 159,214,726.32
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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.