Finding the Fourth Proportional to 784,850,408.70, 1,177,275,613.05 and 768,726,095.10
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Solution
The fourth proportional to 784,850,408.70, 1,177,275,613.05 and 768,726,095.10 is: 1,153,089,142.65
Step by Step Solution
- Step 1: Write the proportion equation
784,850,408.70 : 1,177,275,613.05 = 768,726,095.10 : x - Step 2: Convert to fraction form
784,850,408.70/1,177,275,613.05 = 768,726,095.10/x - Step 3: Cross multiply
784,850,408.70x = 1,177,275,613.05 × 768,726,095.10 - Step 4: Simplify right side
784,850,408.70x = 905,002,484,876,385,152 - Step 5: Solve for x
x = 905,002,484,876,385,152/784,850,408.70 - Step 6: Final answer
x = 1,153,089,142.65
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1.5x scale
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.