Finding the Fourth Proportional to 243,768,924,352.12, 336,401,901,664.72 and 135,382,021,622.87
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Solution
The fourth proportional to 243,768,924,352.12, 336,401,901,664.72 and 135,382,021,622.87 is: 186,827,626,393.27
Step by Step Solution
- Step 1: Write the proportion equation
243,768,924,352.12 : 336,401,901,664.72 = 135,382,021,622.87 : x - Step 2: Convert to fraction form
243,768,924,352.12/336,401,901,664.72 = 135,382,021,622.87/x - Step 3: Cross multiply
243,768,924,352.12x = 336,401,901,664.72 × 135,382,021,622.87 - Step 4: Simplify right side
243,768,924,352.12x = 45,542,769,525,147,704,492,032 - Step 5: Solve for x
x = 45,542,769,525,147,704,492,032/243,768,924,352.12 - Step 6: Final answer
x = 186,827,626,393.27
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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.