Finding the Fourth Proportional to 12,385,223,905.99, 18,570,232,589.80 and 4,813,167,153.75
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Solution
The fourth proportional to 12,385,223,905.99, 18,570,232,589.80 and 4,813,167,153.75 is: 7,216,795,934.99
Step by Step Solution
- Step 1: Write the proportion equation
12,385,223,905.99 : 18,570,232,589.80 = 4,813,167,153.75 : x - Step 2: Convert to fraction form
12,385,223,905.99/18,570,232,589.80 = 4,813,167,153.75/x - Step 3: Cross multiply
12,385,223,905.99x = 18,570,232,589.80 × 4,813,167,153.75 - Step 4: Simplify right side
12,385,223,905.99x = 89,381,633,538,728,738,816 - Step 5: Solve for x
x = 89,381,633,538,728,738,816/12,385,223,905.99 - Step 6: Final answer
x = 7,216,795,934.99
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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.