Finding the Fourth Proportional to 438,328,115.94, 604,952,979.64 and 268,752,356.26
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Solution
The fourth proportional to 438,328,115.94, 604,952,979.64 and 268,752,356.26 is: 370,915,149.61
Step by Step Solution
- Step 1: Write the proportion equation
438,328,115.94 : 604,952,979.64 = 268,752,356.26 : x - Step 2: Convert to fraction form
438,328,115.94/604,952,979.64 = 268,752,356.26/x - Step 3: Cross multiply
438,328,115.94x = 604,952,979.64 × 268,752,356.26 - Step 4: Simplify right side
438,328,115.94x = 162,582,538,705,209,856 - Step 5: Solve for x
x = 162,582,538,705,209,856/438,328,115.94 - Step 6: Final answer
x = 370,915,149.61
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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.