Finding the Fourth Proportional to 274,961,845.15, 379,449,320.24 and 149,513,142.13
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Solution
The fourth proportional to 274,961,845.15, 379,449,320.24 and 149,513,142.13 is: 206,329,209.48
Step by Step Solution
- Step 1: Write the proportion equation
274,961,845.15 : 379,449,320.24 = 149,513,142.13 : x - Step 2: Convert to fraction form
274,961,845.15/379,449,320.24 = 149,513,142.13/x - Step 3: Cross multiply
274,961,845.15x = 379,449,320.24 × 149,513,142.13 - Step 4: Simplify right side
274,961,845.15x = 56,732,660,148,175,008 - Step 5: Solve for x
x = 56,732,660,148,175,008/274,961,845.15 - Step 6: Final answer
x = 206,329,209.48
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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.