Finding the Fourth Proportional to 208,171,549.10, 287,276,739.66 and 115,352,056.91
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Solution
The fourth proportional to 208,171,549.10, 287,276,739.66 and 115,352,056.91 is: 159,185,839.59
Step by Step Solution
- Step 1: Write the proportion equation
208,171,549.10 : 287,276,739.66 = 115,352,056.91 : x - Step 2: Convert to fraction form
208,171,549.10/287,276,739.66 = 115,352,056.91/x - Step 3: Cross multiply
208,171,549.10x = 287,276,739.66 × 115,352,056.91 - Step 4: Simplify right side
208,171,549.10x = 33,137,962,820,743,192 - Step 5: Solve for x
x = 33,137,962,820,743,192/208,171,549.10 - Step 6: Final answer
x = 159,185,839.59
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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.