Finding the Fourth Proportional to 5,777,539.31, 7,972,905.74 and 3,199,164.73
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Solution
The fourth proportional to 5,777,539.31, 7,972,905.74 and 3,199,164.73 is: 4,414,792.77
Step by Step Solution
- Step 1: Write the proportion equation
5,777,539.31 : 7,972,905.74 = 3,199,164.73 : x - Step 2: Convert to fraction form
5,777,539.31/7,972,905.74 = 3,199,164.73/x - Step 3: Cross multiply
5,777,539.31x = 7,972,905.74 × 3,199,164.73 - Step 4: Simplify right side
5,777,539.31x = 25,506,638,803,094.46 - Step 5: Solve for x
x = 25,506,638,803,094.46/5,777,539.31 - Step 6: Final answer
x = 4,414,792.77
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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.