Finding the Fourth Proportional to 138,331,705.57, 207,466,963.39 and 39,942,063.48
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Solution
The fourth proportional to 138,331,705.57, 207,466,963.39 and 39,942,063.48 is: 59,904,261.19
Step by Step Solution
- Step 1: Write the proportion equation
138,331,705.57 : 207,466,963.39 = 39,942,063.48 : x - Step 2: Convert to fraction form
138,331,705.57/207,466,963.39 = 39,942,063.48/x - Step 3: Cross multiply
138,331,705.57x = 207,466,963.39 × 39,942,063.48 - Step 4: Simplify right side
138,331,705.57x = 8,286,658,621,387,143 - Step 5: Solve for x
x = 8,286,658,621,387,143/138,331,705.57 - Step 6: Final answer
x = 59,904,261.19
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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.