Finding the Fourth Proportional to 1,948,619,563.80, 2,922,929,345.70 and 494,596,987.80
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Solution
The fourth proportional to 1,948,619,563.80, 2,922,929,345.70 and 494,596,987.80 is: 741,895,481.70
Step by Step Solution
- Step 1: Write the proportion equation
1,948,619,563.80 : 2,922,929,345.70 = 494,596,987.80 : x - Step 2: Convert to fraction form
1,948,619,563.80/2,922,929,345.70 = 494,596,987.80/x - Step 3: Cross multiply
1,948,619,563.80x = 2,922,929,345.70 × 494,596,987.80 - Step 4: Simplify right side
1,948,619,563.80x = 1,445,672,049,935,444,736 - Step 5: Solve for x
x = 1,445,672,049,935,444,736/1,948,619,563.80 - Step 6: Final answer
x = 741,895,481.70
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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.