Finding the Fourth Proportional to 1,180,982,180.40, 1,771,473,270.60 and 362,988,193.20
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Solution
The fourth proportional to 1,180,982,180.40, 1,771,473,270.60 and 362,988,193.20 is: 544,482,289.80
Step by Step Solution
- Step 1: Write the proportion equation
1,180,982,180.40 : 1,771,473,270.60 = 362,988,193.20 : x - Step 2: Convert to fraction form
1,180,982,180.40/1,771,473,270.60 = 362,988,193.20/x - Step 3: Cross multiply
1,180,982,180.40x = 1,771,473,270.60 × 362,988,193.20 - Step 4: Simplify right side
1,180,982,180.40x = 643,023,881,797,188,608 - Step 5: Solve for x
x = 643,023,881,797,188,608/1,180,982,180.40 - Step 6: Final answer
x = 544,482,289.80
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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.