Finding the Fourth Proportional to 122,477,783.40, 183,716,675.10 and 83,678,653.80
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Solution
The fourth proportional to 122,477,783.40, 183,716,675.10 and 83,678,653.80 is: 125,517,980.70
Step by Step Solution
- Step 1: Write the proportion equation
122,477,783.40 : 183,716,675.10 = 83,678,653.80 : x - Step 2: Convert to fraction form
122,477,783.40/183,716,675.10 = 83,678,653.80/x - Step 3: Cross multiply
122,477,783.40x = 183,716,675.10 × 83,678,653.80 - Step 4: Simplify right side
122,477,783.40x = 15,373,164,052,979,980 - Step 5: Solve for x
x = 15,373,164,052,979,980/122,477,783.40 - Step 6: Final answer
x = 125,517,980.70
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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.