Finding the Fourth Proportional to 1,241,130,912.60, 1,861,696,368.90 and 550,304,851.80
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Solution
The fourth proportional to 1,241,130,912.60, 1,861,696,368.90 and 550,304,851.80 is: 825,457,277.70
Step by Step Solution
- Step 1: Write the proportion equation
1,241,130,912.60 : 1,861,696,368.90 = 550,304,851.80 : x - Step 2: Convert to fraction form
1,241,130,912.60/1,861,696,368.90 = 550,304,851.80/x - Step 3: Cross multiply
1,241,130,912.60x = 1,861,696,368.90 × 550,304,851.80 - Step 4: Simplify right side
1,241,130,912.60x = 1,024,500,544,384,112,640 - Step 5: Solve for x
x = 1,024,500,544,384,112,640/1,241,130,912.60 - Step 6: Final answer
x = 825,457,277.70
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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.