Finding the Fourth Proportional to 1,347,896,260.40, 2,021,844,390.60 and 977,694,459.80
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Solution
The fourth proportional to 1,347,896,260.40, 2,021,844,390.60 and 977,694,459.80 is: 1,466,541,689.70
Step by Step Solution
- Step 1: Write the proportion equation
1,347,896,260.40 : 2,021,844,390.60 = 977,694,459.80 : x - Step 2: Convert to fraction form
1,347,896,260.40/2,021,844,390.60 = 977,694,459.80/x - Step 3: Cross multiply
1,347,896,260.40x = 2,021,844,390.60 × 977,694,459.80 - Step 4: Simplify right side
1,347,896,260.40x = 1,976,746,059,267,326,976 - Step 5: Solve for x
x = 1,976,746,059,267,326,976/1,347,896,260.40 - Step 6: Final answer
x = 1,466,541,689.70
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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.