Finding the Fourth Proportional to 19,570,639.20, 29,355,958.80 and 18,058,984.80
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Solution
The fourth proportional to 19,570,639.20, 29,355,958.80 and 18,058,984.80 is: 27,088,477.20
Step by Step Solution
- Step 1: Write the proportion equation
19,570,639.20 : 29,355,958.80 = 18,058,984.80 : x - Step 2: Convert to fraction form
19,570,639.20/29,355,958.80 = 18,058,984.80/x - Step 3: Cross multiply
19,570,639.20x = 29,355,958.80 × 18,058,984.80 - Step 4: Simplify right side
19,570,639.20x = 530,138,813,758,626.25 - Step 5: Solve for x
x = 530,138,813,758,626.25/19,570,639.20 - Step 6: Final answer
x = 27,088,477.20
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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.