Finding the Fourth Proportional to 86,958,468.78, 119,952,569.79 and 54,306,733.74
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Solution
The fourth proportional to 86,958,468.78, 119,952,569.79 and 54,306,733.74 is: 74,911,993.74
Step by Step Solution
- Step 1: Write the proportion equation
86,958,468.78 : 119,952,569.79 = 54,306,733.74 : x - Step 2: Convert to fraction form
86,958,468.78/119,952,569.79 = 54,306,733.74/x - Step 3: Cross multiply
86,958,468.78x = 119,952,569.79 × 54,306,733.74 - Step 4: Simplify right side
86,958,468.78x = 6,514,232,269,014,298 - Step 5: Solve for x
x = 6,514,232,269,014,298/86,958,468.78 - Step 6: Final answer
x = 74,911,993.74
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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.