Finding the Fourth Proportional to 10,930,072.64, 15,087,753.84 and 9,782,159.36
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Solution
The fourth proportional to 10,930,072.64, 15,087,753.84 and 9,782,159.36 is: 13,503,186.79
Step by Step Solution
- Step 1: Write the proportion equation
10,930,072.64 : 15,087,753.84 = 9,782,159.36 : x - Step 2: Convert to fraction form
10,930,072.64/15,087,753.84 = 9,782,159.36/x - Step 3: Cross multiply
10,930,072.64x = 15,087,753.84 × 9,782,159.36 - Step 4: Simplify right side
10,930,072.64x = 147,590,812,447,331.94 - Step 5: Solve for x
x = 147,590,812,447,331.94/10,930,072.64 - Step 6: Final answer
x = 13,503,186.79
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.