Finding the Fourth Proportional to 1,259,713,034.80, 1,889,569,552.20 and 441,825,335.80
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Solution
The fourth proportional to 1,259,713,034.80, 1,889,569,552.20 and 441,825,335.80 is: 662,738,003.70
Step by Step Solution
- Step 1: Write the proportion equation
1,259,713,034.80 : 1,889,569,552.20 = 441,825,335.80 : x - Step 2: Convert to fraction form
1,259,713,034.80/1,889,569,552.20 = 441,825,335.80/x - Step 3: Cross multiply
1,259,713,034.80x = 1,889,569,552.20 × 441,825,335.80 - Step 4: Simplify right side
1,259,713,034.80x = 834,859,701,918,220,672 - Step 5: Solve for x
x = 834,859,701,918,220,672/1,259,713,034.80 - Step 6: Final answer
x = 662,738,003.70
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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.