Finding the Fourth Proportional to 27,887,782.48, 38,486,074.40 and 15,498,398.09
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Solution
The fourth proportional to 27,887,782.48, 38,486,074.40 and 15,498,398.09 is: 21,388,308.75
Step by Step Solution
- Step 1: Write the proportion equation
27,887,782.48 : 38,486,074.40 = 15,498,398.09 : x - Step 2: Convert to fraction form
27,887,782.48/38,486,074.40 = 15,498,398.09/x - Step 3: Cross multiply
27,887,782.48x = 38,486,074.40 × 15,498,398.09 - Step 4: Simplify right side
27,887,782.48x = 596,472,501,991,281.12 - Step 5: Solve for x
x = 596,472,501,991,281.12/27,887,782.48 - Step 6: Final answer
x = 21,388,308.75
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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.