Finding the Fourth Proportional to 279,234,163.99, 385,330,710.89 and 160,071,328.67
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Solution
The fourth proportional to 279,234,163.99, 385,330,710.89 and 160,071,328.67 is: 220,891,304.95
Step by Step Solution
- Step 1: Write the proportion equation
279,234,163.99 : 385,330,710.89 = 160,071,328.67 : x - Step 2: Convert to fraction form
279,234,163.99/385,330,710.89 = 160,071,328.67/x - Step 3: Cross multiply
279,234,163.99x = 385,330,710.89 × 160,071,328.67 - Step 4: Simplify right side
279,234,163.99x = 61,680,398,868,717,576 - Step 5: Solve for x
x = 61,680,398,868,717,576/279,234,163.99 - Step 6: Final answer
x = 220,891,304.95
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1.5x scale
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.