Finding the Fourth Proportional to 12,781,892.99, 17,639,447.59 and 7,559,378
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Solution
The fourth proportional to 12,781,892.99, 17,639,447.59 and 7,559,378 is: 10,432,199.06
Step by Step Solution
- Step 1: Write the proportion equation
12,781,892.99 : 17,639,447.59 = 7,559,378 : x - Step 2: Convert to fraction form
12,781,892.99/17,639,447.59 = 7,559,378/x - Step 3: Cross multiply
12,781,892.99x = 17,639,447.59 × 7,559,378 - Step 4: Simplify right side
12,781,892.99x = 133,343,252,043,999.02 - Step 5: Solve for x
x = 133,343,252,043,999.02/12,781,892.99 - Step 6: Final answer
x = 10,432,199.06
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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.