Finding the Fourth Proportional to 256,961,098.68, 354,606,765.98 and 139,486,508.48
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Solution
The fourth proportional to 256,961,098.68, 354,606,765.98 and 139,486,508.48 is: 192,491,625.86
Step by Step Solution
- Step 1: Write the proportion equation
256,961,098.68 : 354,606,765.98 = 139,486,508.48 : x - Step 2: Convert to fraction form
256,961,098.68/354,606,765.98 = 139,486,508.48/x - Step 3: Cross multiply
256,961,098.68x = 354,606,765.98 × 139,486,508.48 - Step 4: Simplify right side
256,961,098.68x = 49,462,859,667,464,184 - Step 5: Solve for x
x = 49,462,859,667,464,184/256,961,098.68 - Step 6: Final answer
x = 192,491,625.86
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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.