Finding the Fourth Proportional to 439,560,220.80, 659,340,331.20 and 414,477,955.20
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Solution
The fourth proportional to 439,560,220.80, 659,340,331.20 and 414,477,955.20 is: 621,716,932.80
Step by Step Solution
- Step 1: Write the proportion equation
439,560,220.80 : 659,340,331.20 = 414,477,955.20 : x - Step 2: Convert to fraction form
439,560,220.80/659,340,331.20 = 414,477,955.20/x - Step 3: Cross multiply
439,560,220.80x = 659,340,331.20 × 414,477,955.20 - Step 4: Simplify right side
439,560,220.80x = 273,282,032,256,666,784 - Step 5: Solve for x
x = 273,282,032,256,666,784/439,560,220.80 - Step 6: Final answer
x = 621,716,932.80
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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.