Finding the Fourth Proportional to 7,129,344.39, 9,838,497.52 and 3,866,158.14
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Solution
The fourth proportional to 7,129,344.39, 9,838,497.52 and 3,866,158.14 is: 5,335,299.46
Step by Step Solution
- Step 1: Write the proportion equation
7,129,344.39 : 9,838,497.52 = 3,866,158.14 : x - Step 2: Convert to fraction form
7,129,344.39/9,838,497.52 = 3,866,158.14/x - Step 3: Cross multiply
7,129,344.39x = 9,838,497.52 × 3,866,158.14 - Step 4: Simplify right side
7,129,344.39x = 38,037,187,252,987.02 - Step 5: Solve for x
x = 38,037,187,252,987.02/7,129,344.39 - Step 6: Final answer
x = 5,335,299.46
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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.