Finding the Fourth Proportional to 309,060,841.68, 426,507,356.16 and 169,831,639.44
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Solution
The fourth proportional to 309,060,841.68, 426,507,356.16 and 169,831,639.44 is: 234,369,527.81
Step by Step Solution
- Step 1: Write the proportion equation
309,060,841.68 : 426,507,356.16 = 169,831,639.44 : x - Step 2: Convert to fraction form
309,060,841.68/426,507,356.16 = 169,831,639.44/x - Step 3: Cross multiply
309,060,841.68x = 426,507,356.16 × 169,831,639.44 - Step 4: Simplify right side
309,060,841.68x = 72,434,443,529,872,784 - Step 5: Solve for x
x = 72,434,443,529,872,784/309,060,841.68 - Step 6: Final answer
x = 234,369,527.81
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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.