Finding the Fourth Proportional to 258,068,272.80, 387,102,409.20 and 114,461,104.80
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Solution
The fourth proportional to 258,068,272.80, 387,102,409.20 and 114,461,104.80 is: 171,691,657.20
Step by Step Solution
- Step 1: Write the proportion equation
258,068,272.80 : 387,102,409.20 = 114,461,104.80 : x - Step 2: Convert to fraction form
258,068,272.80/387,102,409.20 = 114,461,104.80/x - Step 3: Cross multiply
258,068,272.80x = 387,102,409.20 × 114,461,104.80 - Step 4: Simplify right side
258,068,272.80x = 44,308,169,427,773,680 - Step 5: Solve for x
x = 44,308,169,427,773,680/258,068,272.80 - Step 6: Final answer
x = 171,691,657.20
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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.