Finding the Fourth Proportional to 1,840,993,389.77, 2,540,570,780.70 and 994,220,630.70
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Solution
The fourth proportional to 1,840,993,389.77, 2,540,570,780.70 and 994,220,630.70 is: 1,372,024,417.88
Step by Step Solution
- Step 1: Write the proportion equation
1,840,993,389.77 : 2,540,570,780.70 = 994,220,630.70 : x - Step 2: Convert to fraction form
1,840,993,389.77/2,540,570,780.70 = 994,220,630.70/x - Step 3: Cross multiply
1,840,993,389.77x = 2,540,570,780.70 × 994,220,630.70 - Step 4: Simplify right side
1,840,993,389.77x = 2,525,887,883,925,545,472 - Step 5: Solve for x
x = 2,525,887,883,925,545,472/1,840,993,389.77 - Step 6: Final answer
x = 1,372,024,417.88
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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.