Finding the Fourth Proportional to 1,486,645,396.18, 2,229,490,686.74 and 490,442,489.26
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Solution
The fourth proportional to 1,486,645,396.18, 2,229,490,686.74 and 490,442,489.26 is: 735,506,237.73
Step by Step Solution
- Step 1: Write the proportion equation
1,486,645,396.18 : 2,229,490,686.74 = 490,442,489.26 : x - Step 2: Convert to fraction form
1,486,645,396.18/2,229,490,686.74 = 490,442,489.26/x - Step 3: Cross multiply
1,486,645,396.18x = 2,229,490,686.74 × 490,442,489.26 - Step 4: Simplify right side
1,486,645,396.18x = 1,093,436,962,186,752,384 - Step 5: Solve for x
x = 1,093,436,962,186,752,384/1,486,645,396.18 - Step 6: Final answer
x = 735,506,237.73
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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.