Finding the Fourth Proportional to 1,851,910,140.10, 2,777,279,788.52 and 608,135,563.61
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Solution
The fourth proportional to 1,851,910,140.10, 2,777,279,788.52 and 608,135,563.61 is: 912,011,102.99
Step by Step Solution
- Step 1: Write the proportion equation
1,851,910,140.10 : 2,777,279,788.52 = 608,135,563.61 : x - Step 2: Convert to fraction form
1,851,910,140.10/2,777,279,788.52 = 608,135,563.61/x - Step 3: Cross multiply
1,851,910,140.10x = 2,777,279,788.52 × 608,135,563.61 - Step 4: Simplify right side
1,851,910,140.10x = 1,688,962,609,507,376,384 - Step 5: Solve for x
x = 1,688,962,609,507,376,384/1,851,910,140.10 - Step 6: Final answer
x = 912,011,102.99
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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.