Finding the Fourth Proportional to 5,284,160,983.20, 7,926,241,474.80 and 1,603,660,432.80
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Solution
The fourth proportional to 5,284,160,983.20, 7,926,241,474.80 and 1,603,660,432.80 is: 2,405,490,649.20
Step by Step Solution
- Step 1: Write the proportion equation
5,284,160,983.20 : 7,926,241,474.80 = 1,603,660,432.80 : x - Step 2: Convert to fraction form
5,284,160,983.20/7,926,241,474.80 = 1,603,660,432.80/x - Step 3: Cross multiply
5,284,160,983.20x = 7,926,241,474.80 × 1,603,660,432.80 - Step 4: Simplify right side
5,284,160,983.20x = 12,710,999,833,955,078,144 - Step 5: Solve for x
x = 12,710,999,833,955,078,144/5,284,160,983.20 - Step 6: Final answer
x = 2,405,490,649.20
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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.