Finding the Fourth Proportional to 744,202,374.99, 1,115,075,257.02 and 432,434,849.73
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Solution
The fourth proportional to 744,202,374.99, 1,115,075,257.02 and 432,434,849.73 is: 647,938,541.20
Step by Step Solution
- Step 1: Write the proportion equation
744,202,374.99 : 1,115,075,257.02 = 432,434,849.73 : x - Step 2: Convert to fraction form
744,202,374.99/1,115,075,257.02 = 432,434,849.73/x - Step 3: Cross multiply
744,202,374.99x = 1,115,075,257.02 × 432,434,849.73 - Step 4: Simplify right side
744,202,374.99x = 482,197,401,207,084,864 - Step 5: Solve for x
x = 482,197,401,207,084,864/744,202,374.99 - Step 6: Final answer
x = 647,938,541.20
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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.