Finding the Fourth Proportional to 83,744,405.70, 125,616,608.55 and 77,697,788.10
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Solution
The fourth proportional to 83,744,405.70, 125,616,608.55 and 77,697,788.10 is: 116,546,682.15
Step by Step Solution
- Step 1: Write the proportion equation
83,744,405.70 : 125,616,608.55 = 77,697,788.10 : x - Step 2: Convert to fraction form
83,744,405.70/125,616,608.55 = 77,697,788.10/x - Step 3: Cross multiply
83,744,405.70x = 125,616,608.55 × 77,697,788.10 - Step 4: Simplify right side
83,744,405.70x = 9,760,132,632,958,548 - Step 5: Solve for x
x = 9,760,132,632,958,548/83,744,405.70 - Step 6: Final answer
x = 116,546,682.15
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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.