Finding the Fourth Proportional to 1,396,313,929.20, 2,094,302,932.20 and 578,340,937.20
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Solution
The fourth proportional to 1,396,313,929.20, 2,094,302,932.20 and 578,340,937.20 is: 867,441,837.58
Step by Step Solution
- Step 1: Write the proportion equation
1,396,313,929.20 : 2,094,302,932.20 = 578,340,937.20 : x - Step 2: Convert to fraction form
1,396,313,929.20/2,094,302,932.20 = 578,340,937.20/x - Step 3: Cross multiply
1,396,313,929.20x = 2,094,302,932.20 × 578,340,937.20 - Step 4: Simplify right side
1,396,313,929.20x = 1,211,221,120,589,256,192 - Step 5: Solve for x
x = 1,211,221,120,589,256,192/1,396,313,929.20 - Step 6: Final answer
x = 867,441,837.58
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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.