Finding the Fourth Proportional to 8,784,590,115.60, 12,118,251,831.84 and 5,609,435,631.12
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Solution
The fourth proportional to 8,784,590,115.60, 12,118,251,831.84 and 5,609,435,631.12 is: 7,738,158,834.72
Step by Step Solution
- Step 1: Write the proportion equation
8,784,590,115.60 : 12,118,251,831.84 = 5,609,435,631.12 : x - Step 2: Convert to fraction form
8,784,590,115.60/12,118,251,831.84 = 5,609,435,631.12/x - Step 3: Cross multiply
8,784,590,115.60x = 12,118,251,831.84 × 5,609,435,631.12 - Step 4: Simplify right side
8,784,590,115.60x = 67,976,553,612,408,504,320 - Step 5: Solve for x
x = 67,976,553,612,408,504,320/8,784,590,115.60 - Step 6: Final answer
x = 7,738,158,834.72
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1.5x scale
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.