Finding the Fourth Proportional to 1,347,977,083.20, 2,021,965,624.80 and 1,118,205,614.40
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Solution
The fourth proportional to 1,347,977,083.20, 2,021,965,624.80 and 1,118,205,614.40 is: 1,677,308,421.60
Step by Step Solution
- Step 1: Write the proportion equation
1,347,977,083.20 : 2,021,965,624.80 = 1,118,205,614.40 : x - Step 2: Convert to fraction form
1,347,977,083.20/2,021,965,624.80 = 1,118,205,614.40/x - Step 3: Cross multiply
1,347,977,083.20x = 2,021,965,624.80 × 1,118,205,614.40 - Step 4: Simplify right side
1,347,977,083.20x = 2,260,973,313,775,163,904 - Step 5: Solve for x
x = 2,260,973,313,775,163,904/1,347,977,083.20 - Step 6: Final answer
x = 1,677,308,421.60
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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.