Finding the Fourth Proportional to 13,130,382.24, 18,122,950.80 and 7,699,623.84
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Solution
The fourth proportional to 13,130,382.24, 18,122,950.80 and 7,699,623.84 is: 10,627,253.76
Step by Step Solution
- Step 1: Write the proportion equation
13,130,382.24 : 18,122,950.80 = 7,699,623.84 : x - Step 2: Convert to fraction form
13,130,382.24/18,122,950.80 = 7,699,623.84/x - Step 3: Cross multiply
13,130,382.24x = 18,122,950.80 × 7,699,623.84 - Step 4: Simplify right side
13,130,382.24x = 139,539,904,030,827.08 - Step 5: Solve for x
x = 139,539,904,030,827.08/13,130,382.24 - Step 6: Final answer
x = 10,627,253.76
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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.