Finding the Fourth Proportional to 31,707,828.74, 43,757,027.61 and 17,221,140.74
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Solution
The fourth proportional to 31,707,828.74, 43,757,027.61 and 17,221,140.74 is: 23,765,295.85
Step by Step Solution
- Step 1: Write the proportion equation
31,707,828.74 : 43,757,027.61 = 17,221,140.74 : x - Step 2: Convert to fraction form
31,707,828.74/43,757,027.61 = 17,221,140.74/x - Step 3: Cross multiply
31,707,828.74x = 43,757,027.61 × 17,221,140.74 - Step 4: Simplify right side
31,707,828.74x = 753,545,930,835,875.75 - Step 5: Solve for x
x = 753,545,930,835,875.75/31,707,828.74 - Step 6: Final answer
x = 23,765,295.85
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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.