Finding the Fourth Proportional to 5,191,208.79, 7,164,285.26 and 2,868,303.75
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Solution
The fourth proportional to 5,191,208.79, 7,164,285.26 and 2,868,303.75 is: 3,958,489.65
Step by Step Solution
- Step 1: Write the proportion equation
5,191,208.79 : 7,164,285.26 = 2,868,303.75 : x - Step 2: Convert to fraction form
5,191,208.79/7,164,285.26 = 2,868,303.75/x - Step 3: Cross multiply
5,191,208.79x = 7,164,285.26 × 2,868,303.75 - Step 4: Simplify right side
5,191,208.79x = 20,549,346,262,986.21 - Step 5: Solve for x
x = 20,549,346,262,986.21/5,191,208.79 - Step 6: Final answer
x = 3,958,489.65
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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.