Finding the Fourth Proportional to 265,740,874.80, 398,611,312.20 and 149,036,431.20
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Solution
The fourth proportional to 265,740,874.80, 398,611,312.20 and 149,036,431.20 is: 223,554,646.80
Step by Step Solution
- Step 1: Write the proportion equation
265,740,874.80 : 398,611,312.20 = 149,036,431.20 : x - Step 2: Convert to fraction form
265,740,874.80/398,611,312.20 = 149,036,431.20/x - Step 3: Cross multiply
265,740,874.80x = 398,611,312.20 × 149,036,431.20 - Step 4: Simplify right side
265,740,874.80x = 59,407,607,406,237,016 - Step 5: Solve for x
x = 59,407,607,406,237,016/265,740,874.80 - Step 6: Final answer
x = 223,554,646.80
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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.