Finding the Fourth Proportional to 258,299,856.99, 387,449,814.65 and 104,946,017.31
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Solution
The fourth proportional to 258,299,856.99, 387,449,814.65 and 104,946,017.31 is: 157,419,037.81
Step by Step Solution
- Step 1: Write the proportion equation
258,299,856.99 : 387,449,814.65 = 104,946,017.31 : x - Step 2: Convert to fraction form
258,299,856.99/387,449,814.65 = 104,946,017.31/x - Step 3: Cross multiply
258,299,856.99x = 387,449,814.65 × 104,946,017.31 - Step 4: Simplify right side
258,299,856.99x = 40,661,314,954,490,464 - Step 5: Solve for x
x = 40,661,314,954,490,464/258,299,856.99 - Step 6: Final answer
x = 157,419,037.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.