Finding the Fourth Proportional to 653,734,203.90, 902,145,745.94 and 356,369,886.09
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Solution
The fourth proportional to 653,734,203.90, 902,145,745.94 and 356,369,886.09 is: 491,786,378.61
Step by Step Solution
- Step 1: Write the proportion equation
653,734,203.90 : 902,145,745.94 = 356,369,886.09 : x - Step 2: Convert to fraction form
653,734,203.90/902,145,745.94 = 356,369,886.09/x - Step 3: Cross multiply
653,734,203.90x = 902,145,745.94 × 356,369,886.09 - Step 4: Simplify right side
653,734,203.90x = 321,497,576,713,113,280 - Step 5: Solve for x
x = 321,497,576,713,113,280/653,734,203.90 - Step 6: Final answer
x = 491,786,378.61
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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.