Finding the Fourth Proportional to 557,730,528.26, 834,980,247.36 and 420,135,618.74
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Solution
The fourth proportional to 557,730,528.26, 834,980,247.36 and 420,135,618.74 is: 628,986,446.12
Step by Step Solution
- Step 1: Write the proportion equation
557,730,528.26 : 834,980,247.36 = 420,135,618.74 : x - Step 2: Convert to fraction form
557,730,528.26/834,980,247.36 = 420,135,618.74/x - Step 3: Cross multiply
557,730,528.26x = 834,980,247.36 × 420,135,618.74 - Step 4: Simplify right side
557,730,528.26x = 350,804,942,860,271,872 - Step 5: Solve for x
x = 350,804,942,860,271,872/557,730,528.26 - Step 6: Final answer
x = 628,986,446.12
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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.