Finding the Fourth Proportional to 679,432,618.14, 1,019,138,687.61 and 305,676,556.74
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Solution
The fourth proportional to 679,432,618.14, 1,019,138,687.61 and 305,676,556.74 is: 458,510,228.31
Step by Step Solution
- Step 1: Write the proportion equation
679,432,618.14 : 1,019,138,687.61 = 305,676,556.74 : x - Step 2: Convert to fraction form
679,432,618.14/1,019,138,687.61 = 305,676,556.74/x - Step 3: Cross multiply
679,432,618.14x = 1,019,138,687.61 × 305,676,556.74 - Step 4: Simplify right side
679,432,618.14x = 311,526,804,866,528,320 - Step 5: Solve for x
x = 311,526,804,866,528,320/679,432,618.14 - Step 6: Final answer
x = 458,510,228.31
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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.