Finding the Fourth Proportional to 15,853,199.68, 21,877,292.28 and 8,609,855.68
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Solution
The fourth proportional to 15,853,199.68, 21,877,292.28 and 8,609,855.68 is: 11,881,533.89
Step by Step Solution
- Step 1: Write the proportion equation
15,853,199.68 : 21,877,292.28 = 8,609,855.68 : x - Step 2: Convert to fraction form
15,853,199.68/21,877,292.28 = 8,609,855.68/x - Step 3: Cross multiply
15,853,199.68x = 21,877,292.28 × 8,609,855.68 - Step 4: Simplify right side
15,853,199.68x = 188,360,329,199,978.16 - Step 5: Solve for x
x = 188,360,329,199,978.16/15,853,199.68 - Step 6: Final answer
x = 11,881,533.89
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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.