Finding the Fourth Proportional to 2,076,012,823.80, 3,114,019,235.70 and 621,990,247.80
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Solution
The fourth proportional to 2,076,012,823.80, 3,114,019,235.70 and 621,990,247.80 is: 932,985,371.70
Step by Step Solution
- Step 1: Write the proportion equation
2,076,012,823.80 : 3,114,019,235.70 = 621,990,247.80 : x - Step 2: Convert to fraction form
2,076,012,823.80/3,114,019,235.70 = 621,990,247.80/x - Step 3: Cross multiply
2,076,012,823.80x = 3,114,019,235.70 × 621,990,247.80 - Step 4: Simplify right side
2,076,012,823.80x = 1,936,889,596,067,009,280 - Step 5: Solve for x
x = 1,936,889,596,067,009,280/2,076,012,823.80 - Step 6: Final answer
x = 932,985,371.70
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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.