Finding the Fourth Proportional to 12,944,215.36, 17,866,074.39 and 7,440,782.95
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Solution
The fourth proportional to 12,944,215.36, 17,866,074.39 and 7,440,782.95 is: 10,270,037.85
Step by Step Solution
- Step 1: Write the proportion equation
12,944,215.36 : 17,866,074.39 = 7,440,782.95 : x - Step 2: Convert to fraction form
12,944,215.36/17,866,074.39 = 7,440,782.95/x - Step 3: Cross multiply
12,944,215.36x = 17,866,074.39 × 7,440,782.95 - Step 4: Simplify right side
12,944,215.36x = 132,937,581,698,973.31 - Step 5: Solve for x
x = 132,937,581,698,973.31/12,944,215.36 - Step 6: Final answer
x = 10,270,037.85
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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.