Finding the Fourth Proportional to 2,817,436,879.40, 4,226,752,515.90 and 852,128,565.80
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Solution
The fourth proportional to 2,817,436,879.40, 4,226,752,515.90 and 852,128,565.80 is: 1,278,373,469.77
Step by Step Solution
- Step 1: Write the proportion equation
2,817,436,879.40 : 4,226,752,515.90 = 852,128,565.80 : x - Step 2: Convert to fraction form
2,817,436,879.40/4,226,752,515.90 = 852,128,565.80/x - Step 3: Cross multiply
2,817,436,879.40x = 4,226,752,515.90 × 852,128,565.80 - Step 4: Simplify right side
2,817,436,879.40x = 3,601,736,559,365,408,768 - Step 5: Solve for x
x = 3,601,736,559,365,408,768/2,817,436,879.40 - Step 6: Final answer
x = 1,278,373,469.77
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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.