Finding the Fourth Proportional to 212,373,451.16, 293,090,092.38 and 128,745,106.71
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Solution
The fourth proportional to 212,373,451.16, 293,090,092.38 and 128,745,106.71 is: 177,677,176.76
Step by Step Solution
- Step 1: Write the proportion equation
212,373,451.16 : 293,090,092.38 = 128,745,106.71 : x - Step 2: Convert to fraction form
212,373,451.16/293,090,092.38 = 128,745,106.71/x - Step 3: Cross multiply
212,373,451.16x = 293,090,092.38 × 128,745,106.71 - Step 4: Simplify right side
212,373,451.16x = 37,733,915,219,106,856 - Step 5: Solve for x
x = 37,733,915,219,106,856/212,373,451.16 - Step 6: Final answer
x = 177,677,176.76
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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.