Finding the Fourth Proportional to 38,709,277.05, 53,418,799.21 and 21,068,306.09
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Solution
The fourth proportional to 38,709,277.05, 53,418,799.21 and 21,068,306.09 is: 29,074,260.71
Step by Step Solution
- Step 1: Write the proportion equation
38,709,277.05 : 53,418,799.21 = 21,068,306.09 : x - Step 2: Convert to fraction form
38,709,277.05/53,418,799.21 = 21,068,306.09/x - Step 3: Cross multiply
38,709,277.05x = 53,418,799.21 × 21,068,306.09 - Step 4: Simplify right side
38,709,277.05x = 1,125,443,612,716,530.25 - Step 5: Solve for x
x = 1,125,443,612,716,530.25/38,709,277.05 - Step 6: Final answer
x = 29,074,260.71
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1.5x scale
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.