Finding the Fourth Proportional to 7,129,339.92, 9,838,494.65 and 3,866,153.99
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Solution
The fourth proportional to 7,129,339.92, 9,838,494.65 and 3,866,153.99 is: 5,335,295.51
Step by Step Solution
- Step 1: Write the proportion equation
7,129,339.92 : 9,838,494.65 = 3,866,153.99 : x - Step 2: Convert to fraction form
7,129,339.92/9,838,494.65 = 3,866,153.99/x - Step 3: Cross multiply
7,129,339.92x = 9,838,494.65 × 3,866,153.99 - Step 4: Simplify right side
7,129,339.92x = 38,037,135,278,167.91 - Step 5: Solve for x
x = 38,037,135,278,167.91/7,129,339.92 - Step 6: Final answer
x = 5,335,295.51
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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.