Finding the Fourth Proportional to 5,615,705.96, 7,749,675.70 and 3,168,835.55
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Solution
The fourth proportional to 5,615,705.96, 7,749,675.70 and 3,168,835.55 is: 4,372,993.89
Step by Step Solution
- Step 1: Write the proportion equation
5,615,705.96 : 7,749,675.70 = 3,168,835.55 : x - Step 2: Convert to fraction form
5,615,705.96/7,749,675.70 = 3,168,835.55/x - Step 3: Cross multiply
5,615,705.96x = 7,749,675.70 × 3,168,835.55 - Step 4: Simplify right side
5,615,705.96x = 24,557,447,812,460.67 - Step 5: Solve for x
x = 24,557,447,812,460.67/5,615,705.96 - Step 6: Final answer
x = 4,372,993.89
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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.