Finding the Fourth Proportional to 623,037,450.13, 860,056,418.51 and 388,204,134.96
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Solution
The fourth proportional to 623,037,450.13, 860,056,418.51 and 388,204,134.96 is: 535,886,659.62
Step by Step Solution
- Step 1: Write the proportion equation
623,037,450.13 : 860,056,418.51 = 388,204,134.96 : x - Step 2: Convert to fraction form
623,037,450.13/860,056,418.51 = 388,204,134.96/x - Step 3: Cross multiply
623,037,450.13x = 860,056,418.51 × 388,204,134.96 - Step 4: Simplify right side
623,037,450.13x = 333,877,457,965,440,768 - Step 5: Solve for x
x = 333,877,457,965,440,768/623,037,450.13 - Step 6: Final answer
x = 535,886,659.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.