Finding the Fourth Proportional to 1,387,825,162.22, 1,915,180,856.16 and 793,102,836.08
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Solution
The fourth proportional to 1,387,825,162.22, 1,915,180,856.16 and 793,102,836.08 is: 1,094,471,702.90
Step by Step Solution
- Step 1: Write the proportion equation
1,387,825,162.22 : 1,915,180,856.16 = 793,102,836.08 : x - Step 2: Convert to fraction form
1,387,825,162.22/1,915,180,856.16 = 793,102,836.08/x - Step 3: Cross multiply
1,387,825,162.22x = 1,915,180,856.16 × 793,102,836.08 - Step 4: Simplify right side
1,387,825,162.22x = 1,518,935,368,626,618,624 - Step 5: Solve for x
x = 1,518,935,368,626,618,624/1,387,825,162.22 - Step 6: Final answer
x = 1,094,471,702.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.