Finding the Fourth Proportional to 173,478,168.99, 239,397,639.63 and 99,137,878.14
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Solution
The fourth proportional to 173,478,168.99, 239,397,639.63 and 99,137,878.14 is: 136,808,995.41
Step by Step Solution
- Step 1: Write the proportion equation
173,478,168.99 : 239,397,639.63 = 99,137,878.14 : x - Step 2: Convert to fraction form
173,478,168.99/239,397,639.63 = 99,137,878.14/x - Step 3: Cross multiply
173,478,168.99x = 239,397,639.63 × 99,137,878.14 - Step 4: Simplify right side
173,478,168.99x = 23,733,374,024,642,576 - Step 5: Solve for x
x = 23,733,374,024,642,576/173,478,168.99 - Step 6: Final answer
x = 136,808,995.41
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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.