Finding the Fourth Proportional to 659,854,252.26, 990,646,409.43 and 442,477,279.26
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Solution
The fourth proportional to 659,854,252.26, 990,646,409.43 and 442,477,279.26 is: 664,295,981.20
Step by Step Solution
- Step 1: Write the proportion equation
659,854,252.26 : 990,646,409.43 = 442,477,279.26 : x - Step 2: Convert to fraction form
659,854,252.26/990,646,409.43 = 442,477,279.26/x - Step 3: Cross multiply
659,854,252.26x = 990,646,409.43 × 442,477,279.26 - Step 4: Simplify right side
659,854,252.26x = 438,338,527,953,274,368 - Step 5: Solve for x
x = 438,338,527,953,274,368/659,854,252.26 - Step 6: Final answer
x = 664,295,981.20
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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.