Finding the Fourth Proportional to 7,267,218.90, 10,900,828.35 and 3,478,751.70
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Solution
The fourth proportional to 7,267,218.90, 10,900,828.35 and 3,478,751.70 is: 5,218,127.55
Step by Step Solution
- Step 1: Write the proportion equation
7,267,218.90 : 10,900,828.35 = 3,478,751.70 : x - Step 2: Convert to fraction form
7,267,218.90/10,900,828.35 = 3,478,751.70/x - Step 3: Cross multiply
7,267,218.90x = 10,900,828.35 × 3,478,751.70 - Step 4: Simplify right side
7,267,218.90x = 37,921,275,153,970.70 - Step 5: Solve for x
x = 37,921,275,153,970.70/7,267,218.90 - Step 6: Final answer
x = 5,218,127.55
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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.