Finding the Fourth Proportional to 1,260,864,226.80, 1,891,296,340.20 and 777,134,818.80
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Solution
The fourth proportional to 1,260,864,226.80, 1,891,296,340.20 and 777,134,818.80 is: 1,165,702,228.20
Step by Step Solution
- Step 1: Write the proportion equation
1,260,864,226.80 : 1,891,296,340.20 = 777,134,818.80 : x - Step 2: Convert to fraction form
1,260,864,226.80/1,891,296,340.20 = 777,134,818.80/x - Step 3: Cross multiply
1,260,864,226.80x = 1,891,296,340.20 × 777,134,818.80 - Step 4: Simplify right side
1,260,864,226.80x = 1,469,792,238,638,430,208 - Step 5: Solve for x
x = 1,469,792,238,638,430,208/1,260,864,226.80 - Step 6: Final answer
x = 1,165,702,228.20
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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.