Finding the Fourth Proportional to 12,406,817.79, 17,121,256.34 and 6,974,309.79
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Solution
The fourth proportional to 12,406,817.79, 17,121,256.34 and 6,974,309.79 is: 9,624,461.94
Step by Step Solution
- Step 1: Write the proportion equation
12,406,817.79 : 17,121,256.34 = 6,974,309.79 : x - Step 2: Convert to fraction form
12,406,817.79/17,121,256.34 = 6,974,309.79/x - Step 3: Cross multiply
12,406,817.79x = 17,121,256.34 × 6,974,309.79 - Step 4: Simplify right side
12,406,817.79x = 119,408,945,674,290.03 - Step 5: Solve for x
x = 119,408,945,674,290.03/12,406,817.79 - Step 6: Final answer
x = 9,624,461.94
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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.