Finding the Fourth Proportional to 5,390,028.90, 8,073,233.55 and 4,791,665.70
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Solution
The fourth proportional to 5,390,028.90, 8,073,233.55 and 4,791,665.70 is: 7,176,999.79
Step by Step Solution
- Step 1: Write the proportion equation
5,390,028.90 : 8,073,233.55 = 4,791,665.70 : x - Step 2: Convert to fraction form
5,390,028.90/8,073,233.55 = 4,791,665.70/x - Step 3: Cross multiply
5,390,028.90x = 8,073,233.55 × 4,791,665.70 - Step 4: Simplify right side
5,390,028.90x = 38,684,236,289,624.23 - Step 5: Solve for x
x = 38,684,236,289,624.23/5,390,028.90 - Step 6: Final answer
x = 7,176,999.79
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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.