Finding the Fourth Proportional to 402,765,349.65, 555,786,135.76 and 226,519,294.38
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Solution
The fourth proportional to 402,765,349.65, 555,786,135.76 and 226,519,294.38 is: 312,579,727.64
Step by Step Solution
- Step 1: Write the proportion equation
402,765,349.65 : 555,786,135.76 = 226,519,294.38 : x - Step 2: Convert to fraction form
402,765,349.65/555,786,135.76 = 226,519,294.38/x - Step 3: Cross multiply
402,765,349.65x = 555,786,135.76 × 226,519,294.38 - Step 4: Simplify right side
402,765,349.65x = 125,896,283,297,287,216 - Step 5: Solve for x
x = 125,896,283,297,287,216/402,765,349.65 - Step 6: Final answer
x = 312,579,727.64
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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.