Finding the Fourth Proportional to 5,181,554,501.20, 7,772,331,751.80 and 4,251,745,327.60
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Solution
The fourth proportional to 5,181,554,501.20, 7,772,331,751.80 and 4,251,745,327.60 is: 6,377,617,991.40
Step by Step Solution
- Step 1: Write the proportion equation
5,181,554,501.20 : 7,772,331,751.80 = 4,251,745,327.60 : x - Step 2: Convert to fraction form
5,181,554,501.20/7,772,331,751.80 = 4,251,745,327.60/x - Step 3: Cross multiply
5,181,554,501.20x = 7,772,331,751.80 × 4,251,745,327.60 - Step 4: Simplify right side
5,181,554,501.20x = 33,045,975,210,272,772,096 - Step 5: Solve for x
x = 33,045,975,210,272,772,096/5,181,554,501.20 - Step 6: Final answer
x = 6,377,617,991.40
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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.