Finding the Fourth Proportional to 256,961,094.17, 354,606,759.78 and 139,486,503.99
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Solution
The fourth proportional to 256,961,094.17, 354,606,759.78 and 139,486,503.99 is: 192,491,619.69
Step by Step Solution
- Step 1: Write the proportion equation
256,961,094.17 : 354,606,759.78 = 139,486,503.99 : x - Step 2: Convert to fraction form
256,961,094.17/354,606,759.78 = 139,486,503.99/x - Step 3: Cross multiply
256,961,094.17x = 354,606,759.78 × 139,486,503.99 - Step 4: Simplify right side
256,961,094.17x = 49,462,857,212,933,944 - Step 5: Solve for x
x = 49,462,857,212,933,944/256,961,094.17 - Step 6: Final answer
x = 192,491,619.69
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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.