Finding the Fourth Proportional to 1,618,056,130.20, 2,427,084,195.30 and 930,085,416.60
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Solution
The fourth proportional to 1,618,056,130.20, 2,427,084,195.30 and 930,085,416.60 is: 1,395,128,124.90
Step by Step Solution
- Step 1: Write the proportion equation
1,618,056,130.20 : 2,427,084,195.30 = 930,085,416.60 : x - Step 2: Convert to fraction form
1,618,056,130.20/2,427,084,195.30 = 930,085,416.60/x - Step 3: Cross multiply
1,618,056,130.20x = 2,427,084,195.30 × 930,085,416.60 - Step 4: Simplify right side
1,618,056,130.20x = 2,257,395,614,908,876,544 - Step 5: Solve for x
x = 2,257,395,614,908,876,544/1,618,056,130.20 - Step 6: Final answer
x = 1,395,128,124.90
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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.