Finding the Fourth Proportional to 349,508,824.80, 482,332,403.84 and 190,749,130.47
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Solution
The fourth proportional to 349,508,824.80, 482,332,403.84 and 190,749,130.47 is: 263,239,380.82
Step by Step Solution
- Step 1: Write the proportion equation
349,508,824.80 : 482,332,403.84 = 190,749,130.47 : x - Step 2: Convert to fraction form
349,508,824.80/482,332,403.84 = 190,749,130.47/x - Step 3: Cross multiply
349,508,824.80x = 482,332,403.84 × 190,749,130.47 - Step 4: Simplify right side
349,508,824.80x = 92,004,486,629,031,136 - Step 5: Solve for x
x = 92,004,486,629,031,136/349,508,824.80 - Step 6: Final answer
x = 263,239,380.82
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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.