Finding the Fourth Proportional to 143,395,589,000.99, 197,975,218,836.20 and 91,281,724,190.80
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Solution
The fourth proportional to 143,395,589,000.99, 197,975,218,836.20 and 91,281,724,190.80 is: 126,025,629,158.60
Step by Step Solution
- Step 1: Write the proportion equation
143,395,589,000.99 : 197,975,218,836.20 = 91,281,724,190.80 : x - Step 2: Convert to fraction form
143,395,589,000.99/197,975,218,836.20 = 91,281,724,190.80/x - Step 3: Cross multiply
143,395,589,000.99x = 197,975,218,836.20 × 91,281,724,190.80 - Step 4: Simplify right side
143,395,589,000.99x = 18,071,519,322,418,293,243,904 - Step 5: Solve for x
x = 18,071,519,322,418,293,243,904/143,395,589,000.99 - Step 6: Final answer
x = 126,025,629,158.60
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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.