Finding the Fourth Proportional to 181,912,932.70, 272,869,399.05 and 66,873,670.90
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Solution
The fourth proportional to 181,912,932.70, 272,869,399.05 and 66,873,670.90 is: 100,310,506.35
Step by Step Solution
- Step 1: Write the proportion equation
181,912,932.70 : 272,869,399.05 = 66,873,670.90 : x - Step 2: Convert to fraction form
181,912,932.70/272,869,399.05 = 66,873,670.90/x - Step 3: Cross multiply
181,912,932.70x = 272,869,399.05 × 66,873,670.90 - Step 4: Simplify right side
181,912,932.70x = 18,247,778,390,750,472 - Step 5: Solve for x
x = 18,247,778,390,750,472/181,912,932.70 - Step 6: Final answer
x = 100,310,506.35
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1.5x scale
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.