Finding the Fourth Proportional to 7,478,009,694.20, 11,217,014,541.30 and 3,115,375,095.80
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Solution
The fourth proportional to 7,478,009,694.20, 11,217,014,541.30 and 3,115,375,095.80 is: 4,673,062,643.70
Step by Step Solution
- Step 1: Write the proportion equation
7,478,009,694.20 : 11,217,014,541.30 = 3,115,375,095.80 : x - Step 2: Convert to fraction form
7,478,009,694.20/11,217,014,541.30 = 3,115,375,095.80/x - Step 3: Cross multiply
7,478,009,694.20x = 11,217,014,541.30 × 3,115,375,095.80 - Step 4: Simplify right side
7,478,009,694.20x = 34,945,207,751,192,481,792 - Step 5: Solve for x
x = 34,945,207,751,192,481,792/7,478,009,694.20 - Step 6: Final answer
x = 4,673,062,643.70
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1.5x scale
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.