Finding the Fourth Proportional to 274,192,958.14, 378,386,282.23 and 156,720,810.65
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Solution
The fourth proportional to 274,192,958.14, 378,386,282.23 and 156,720,810.65 is: 216,274,718.69
Step by Step Solution
- Step 1: Write the proportion equation
274,192,958.14 : 378,386,282.23 = 156,720,810.65 : x - Step 2: Convert to fraction form
274,192,958.14/378,386,282.23 = 156,720,810.65/x - Step 3: Cross multiply
274,192,958.14x = 378,386,282.23 × 156,720,810.65 - Step 4: Simplify right side
274,192,958.14x = 59,301,004,887,641,560 - Step 5: Solve for x
x = 59,301,004,887,641,560/274,192,958.14 - Step 6: Final answer
x = 216,274,718.69
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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.