Finding the Fourth Proportional to 90,292,344,082.60, 135,349,054,249.80 and 42,399,620,812.84
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Solution
The fourth proportional to 90,292,344,082.60, 135,349,054,249.80 and 42,399,620,812.84 is: 63,557,421,571.85
Step by Step Solution
- Step 1: Write the proportion equation
90,292,344,082.60 : 135,349,054,249.80 = 42,399,620,812.84 : x - Step 2: Convert to fraction form
90,292,344,082.60/135,349,054,249.80 = 42,399,620,812.84/x - Step 3: Cross multiply
90,292,344,082.60x = 135,349,054,249.80 × 42,399,620,812.84 - Step 4: Simplify right side
90,292,344,082.60x = 5,738,748,577,568,030,457,856 - Step 5: Solve for x
x = 5,738,748,577,568,030,457,856/90,292,344,082.60 - Step 6: Final answer
x = 63,557,421,571.85
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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.