Finding the Fourth Proportional to 243,768,924,351.12, 336,401,901,663.34 and 135,382,021,621.87
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Solution
The fourth proportional to 243,768,924,351.12, 336,401,901,663.34 and 135,382,021,621.87 is: 186,827,626,391.89
Step by Step Solution
- Step 1: Write the proportion equation
243,768,924,351.12 : 336,401,901,663.34 = 135,382,021,621.87 : x - Step 2: Convert to fraction form
243,768,924,351.12/336,401,901,663.34 = 135,382,021,621.87/x - Step 3: Cross multiply
243,768,924,351.12x = 336,401,901,663.34 × 135,382,021,621.87 - Step 4: Simplify right side
243,768,924,351.12x = 45,542,769,524,624,481,845,248 - Step 5: Solve for x
x = 45,542,769,524,624,481,845,248/243,768,924,351.12 - Step 6: Final answer
x = 186,827,626,391.89
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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.