Finding the Fourth Proportional to 1,375,489,990.80, 2,064,080,874.60 and 546,298,563.60
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Solution
The fourth proportional to 1,375,489,990.80, 2,064,080,874.60 and 546,298,563.60 is: 819,783,803.95
Step by Step Solution
- Step 1: Write the proportion equation
1,375,489,990.80 : 2,064,080,874.60 = 546,298,563.60 : x - Step 2: Convert to fraction form
1,375,489,990.80/2,064,080,874.60 = 546,298,563.60/x - Step 3: Cross multiply
1,375,489,990.80x = 2,064,080,874.60 × 546,298,563.60 - Step 4: Simplify right side
1,375,489,990.80x = 1,127,604,416,948,211,712 - Step 5: Solve for x
x = 1,127,604,416,948,211,712/1,375,489,990.80 - Step 6: Final answer
x = 819,783,803.95
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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.