Finding the Fourth Proportional to 38,867,758.70, 53,637,527.36 and 21,226,902.75
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Solution
The fourth proportional to 38,867,758.70, 53,637,527.36 and 21,226,902.75 is: 29,293,136.92
Step by Step Solution
- Step 1: Write the proportion equation
38,867,758.70 : 53,637,527.36 = 21,226,902.75 : x - Step 2: Convert to fraction form
38,867,758.70/53,637,527.36 = 21,226,902.75/x - Step 3: Cross multiply
38,867,758.70x = 53,637,527.36 × 21,226,902.75 - Step 4: Simplify right side
38,867,758.70x = 1,138,558,577,074,251.50 - Step 5: Solve for x
x = 1,138,558,577,074,251.50/38,867,758.70 - Step 6: Final answer
x = 29,293,136.92
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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.