Finding the Fourth Proportional to 1,397,155,416.60, 2,095,733,124.90 and 1,189,415,129.70
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Solution
The fourth proportional to 1,397,155,416.60, 2,095,733,124.90 and 1,189,415,129.70 is: 1,784,122,694.55
Step by Step Solution
- Step 1: Write the proportion equation
1,397,155,416.60 : 2,095,733,124.90 = 1,189,415,129.70 : x - Step 2: Convert to fraction form
1,397,155,416.60/2,095,733,124.90 = 1,189,415,129.70/x - Step 3: Cross multiply
1,397,155,416.60x = 2,095,733,124.90 × 1,189,415,129.70 - Step 4: Simplify right side
1,397,155,416.60x = 2,492,696,686,569,520,128 - Step 5: Solve for x
x = 2,492,696,686,569,520,128/1,397,155,416.60 - Step 6: Final answer
x = 1,784,122,694.55
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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.