Finding the Fourth Proportional to 2,125,765,844.10, 3,188,648,766.15 and 961,272,324.90
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Solution
The fourth proportional to 2,125,765,844.10, 3,188,648,766.15 and 961,272,324.90 is: 1,441,908,487.35
Step by Step Solution
- Step 1: Write the proportion equation
2,125,765,844.10 : 3,188,648,766.15 = 961,272,324.90 : x - Step 2: Convert to fraction form
2,125,765,844.10/3,188,648,766.15 = 961,272,324.90/x - Step 3: Cross multiply
2,125,765,844.10x = 3,188,648,766.15 × 961,272,324.90 - Step 4: Simplify right side
2,125,765,844.10x = 3,065,159,812,726,526,976 - Step 5: Solve for x
x = 3,065,159,812,726,526,976/2,125,765,844.10 - Step 6: Final answer
x = 1,441,908,487.35
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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.