Finding the Fourth Proportional to 5,139,836.94, 7,704,330.03 and 1,724,885.58
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Solution
The fourth proportional to 5,139,836.94, 7,704,330.03 and 1,724,885.58 is: 2,585,507.66
Step by Step Solution
- Step 1: Write the proportion equation
5,139,836.94 : 7,704,330.03 = 1,724,885.58 : x - Step 2: Convert to fraction form
5,139,836.94/7,704,330.03 = 1,724,885.58/x - Step 3: Cross multiply
5,139,836.94x = 7,704,330.03 × 1,724,885.58 - Step 4: Simplify right side
5,139,836.94x = 13,289,087,772,307.97 - Step 5: Solve for x
x = 13,289,087,772,307.97/5,139,836.94 - Step 6: Final answer
x = 2,585,507.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.