Finding the Fourth Proportional to 5,278,966.84, 7,918,809.70 and 1,685,004.33
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Solution
The fourth proportional to 5,278,966.84, 7,918,809.70 and 1,685,004.33 is: 2,527,621.23
Step by Step Solution
- Step 1: Write the proportion equation
5,278,966.84 : 7,918,809.70 = 1,685,004.33 : x - Step 2: Convert to fraction form
5,278,966.84/7,918,809.70 = 1,685,004.33/x - Step 3: Cross multiply
5,278,966.84x = 7,918,809.70 × 1,685,004.33 - Step 4: Simplify right side
5,278,966.84x = 13,343,228,632,946.00 - Step 5: Solve for x
x = 13,343,228,632,946.00/5,278,966.84 - Step 6: Final answer
x = 2,527,621.23
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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.