Finding the Fourth Proportional to 40,377,679.12, 55,720,913.73 and 22,042,964.62
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Solution
The fourth proportional to 40,377,679.12, 55,720,913.73 and 22,042,964.62 is: 30,419,136.43
Step by Step Solution
- Step 1: Write the proportion equation
40,377,679.12 : 55,720,913.73 = 22,042,964.62 : x - Step 2: Convert to fraction form
40,377,679.12/55,720,913.73 = 22,042,964.62/x - Step 3: Cross multiply
40,377,679.12x = 55,720,913.73 × 22,042,964.62 - Step 4: Simplify right side
40,377,679.12x = 1,228,254,129,944,462.25 - Step 5: Solve for x
x = 1,228,254,129,944,462.25/40,377,679.12 - Step 6: Final answer
x = 30,419,136.43
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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.