Finding the Fourth Proportional to 256,933,586.40, 385,272,853.20 and 93,164,805.60
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Solution
The fourth proportional to 256,933,586.40, 385,272,853.20 and 93,164,805.60 is: 139,700,966.99
Step by Step Solution
- Step 1: Write the proportion equation
256,933,586.40 : 385,272,853.20 = 93,164,805.60 : x - Step 2: Convert to fraction form
256,933,586.40/385,272,853.20 = 93,164,805.60/x - Step 3: Cross multiply
256,933,586.40x = 385,272,853.20 × 93,164,805.60 - Step 4: Simplify right side
256,933,586.40x = 35,893,870,471,335,336 - Step 5: Solve for x
x = 35,893,870,471,335,336/256,933,586.40 - Step 6: Final answer
x = 139,700,966.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.