Finding the Fourth Proportional to 40,377,678.62, 55,720,913.04 and 22,042,964.12
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Solution
The fourth proportional to 40,377,678.62, 55,720,913.04 and 22,042,964.12 is: 30,419,135.74
Step by Step Solution
- Step 1: Write the proportion equation
40,377,678.62 : 55,720,913.04 = 22,042,964.12 : x - Step 2: Convert to fraction form
40,377,678.62/55,720,913.04 = 22,042,964.12/x - Step 3: Cross multiply
40,377,678.62x = 55,720,913.04 × 22,042,964.12 - Step 4: Simplify right side
40,377,678.62x = 1,228,254,086,874,360.25 - Step 5: Solve for x
x = 1,228,254,086,874,360.25/40,377,678.62 - Step 6: Final answer
x = 30,419,135.74
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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.