Finding the Fourth Proportional to 9,926,422.80, 14,889,634.20 and 8,918,653.20
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Solution
The fourth proportional to 9,926,422.80, 14,889,634.20 and 8,918,653.20 is: 13,377,979.80
Step by Step Solution
- Step 1: Write the proportion equation
9,926,422.80 : 14,889,634.20 = 8,918,653.20 : x - Step 2: Convert to fraction form
9,926,422.80/14,889,634.20 = 8,918,653.20/x - Step 3: Cross multiply
9,926,422.80x = 14,889,634.20 × 8,918,653.20 - Step 4: Simplify right side
9,926,422.80x = 132,795,483,704,659.42 - Step 5: Solve for x
x = 132,795,483,704,659.42/9,926,422.80 - Step 6: Final answer
x = 13,377,979.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.