Finding the Fourth Proportional to 18,105,643.68, 24,985,289.88 and 9,956,881.68
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Solution
The fourth proportional to 18,105,643.68, 24,985,289.88 and 9,956,881.68 is: 13,740,222.63
Step by Step Solution
- Step 1: Write the proportion equation
18,105,643.68 : 24,985,289.88 = 9,956,881.68 : x - Step 2: Convert to fraction form
18,105,643.68/24,985,289.88 = 9,956,881.68/x - Step 3: Cross multiply
18,105,643.68x = 24,985,289.88 × 9,956,881.68 - Step 4: Simplify right side
18,105,643.68x = 248,775,575,075,661.38 - Step 5: Solve for x
x = 248,775,575,075,661.38/18,105,643.68 - Step 6: Final answer
x = 13,740,222.63
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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.