Finding the Fourth Proportional to 1,826,567,807.91, 2,520,663,575.14 and 991,192,378.50
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Solution
The fourth proportional to 1,826,567,807.91, 2,520,663,575.14 and 991,192,378.50 is: 1,367,845,482.45
Step by Step Solution
- Step 1: Write the proportion equation
1,826,567,807.91 : 2,520,663,575.14 = 991,192,378.50 : x - Step 2: Convert to fraction form
1,826,567,807.91/2,520,663,575.14 = 991,192,378.50/x - Step 3: Cross multiply
1,826,567,807.91x = 2,520,663,575.14 × 991,192,378.50 - Step 4: Simplify right side
1,826,567,807.91x = 2,498,462,524,441,330,176 - Step 5: Solve for x
x = 2,498,462,524,441,330,176/1,826,567,807.91 - Step 6: Final answer
x = 1,367,845,482.45
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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.