Finding the Fourth Proportional to 11,818,237.90, 16,306,391.01 and 7,171,918.12
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Solution
The fourth proportional to 11,818,237.90, 16,306,391.01 and 7,171,918.12 is: 9,895,561.60
Step by Step Solution
- Step 1: Write the proportion equation
11,818,237.90 : 16,306,391.01 = 7,171,918.12 : x - Step 2: Convert to fraction form
11,818,237.90/16,306,391.01 = 7,171,918.12/x - Step 3: Cross multiply
11,818,237.90x = 16,306,391.01 × 7,171,918.12 - Step 4: Simplify right side
11,818,237.90x = 116,948,101,156,424.09 - Step 5: Solve for x
x = 116,948,101,156,424.09/11,818,237.90 - Step 6: Final answer
x = 9,895,561.60
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1.5x scale
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.