Finding the Fourth Proportional to 1,617,451,861.40, 2,426,177,792.10 and 648,798,651.80
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Solution
The fourth proportional to 1,617,451,861.40, 2,426,177,792.10 and 648,798,651.80 is: 973,197,977.70
Step by Step Solution
- Step 1: Write the proportion equation
1,617,451,861.40 : 2,426,177,792.10 = 648,798,651.80 : x - Step 2: Convert to fraction form
1,617,451,861.40/2,426,177,792.10 = 648,798,651.80/x - Step 3: Cross multiply
1,617,451,861.40x = 2,426,177,792.10 × 648,798,651.80 - Step 4: Simplify right side
1,617,451,861.40x = 1,574,100,880,541,580,544 - Step 5: Solve for x
x = 1,574,100,880,541,580,544/1,617,451,861.40 - Step 6: Final answer
x = 973,197,977.70
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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.