Finding the Fourth Proportional to 696,403,481.98, 961,036,772.81 and 383,130,969.91
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Solution
The fourth proportional to 696,403,481.98, 961,036,772.81 and 383,130,969.91 is: 528,720,720.68
Step by Step Solution
- Step 1: Write the proportion equation
696,403,481.98 : 961,036,772.81 = 383,130,969.91 : x - Step 2: Convert to fraction form
696,403,481.98/961,036,772.81 = 383,130,969.91/x - Step 3: Cross multiply
696,403,481.98x = 961,036,772.81 × 383,130,969.91 - Step 4: Simplify right side
696,403,481.98x = 368,202,950,879,150,720 - Step 5: Solve for x
x = 368,202,950,879,150,720/696,403,481.98 - Step 6: Final answer
x = 528,720,720.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.