Finding the Fourth Proportional to 362,507,730.40, 542,486,137.20 and 331,896,728.80
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Solution
The fourth proportional to 362,507,730.40, 542,486,137.20 and 331,896,728.80 is: 496,677,337.49
Step by Step Solution
- Step 1: Write the proportion equation
362,507,730.40 : 542,486,137.20 = 331,896,728.80 : x - Step 2: Convert to fraction form
362,507,730.40/542,486,137.20 = 331,896,728.80/x - Step 3: Cross multiply
362,507,730.40x = 542,486,137.20 × 331,896,728.80 - Step 4: Simplify right side
362,507,730.40x = 180,049,374,356,028,000 - Step 5: Solve for x
x = 180,049,374,356,028,000/362,507,730.40 - Step 6: Final answer
x = 496,677,337.49
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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.