Finding the Fourth Proportional to 696,403,481.92, 961,036,772.72 and 383,130,969.84
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Solution
The fourth proportional to 696,403,481.92, 961,036,772.72 and 383,130,969.84 is: 528,720,720.59
Step by Step Solution
- Step 1: Write the proportion equation
696,403,481.92 : 961,036,772.72 = 383,130,969.84 : x - Step 2: Convert to fraction form
696,403,481.92/961,036,772.72 = 383,130,969.84/x - Step 3: Cross multiply
696,403,481.92x = 961,036,772.72 × 383,130,969.84 - Step 4: Simplify right side
696,403,481.92x = 368,202,950,782,201,600 - Step 5: Solve for x
x = 368,202,950,782,201,600/696,403,481.92 - Step 6: Final answer
x = 528,720,720.59
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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.