Finding the Fourth Proportional to 696,403,441.28, 961,036,716.50 and 383,130,929.21
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Solution
The fourth proportional to 696,403,441.28, 961,036,716.50 and 383,130,929.21 is: 528,720,664.44
Step by Step Solution
- Step 1: Write the proportion equation
696,403,441.28 : 961,036,716.50 = 383,130,929.21 : x - Step 2: Convert to fraction form
696,403,441.28/961,036,716.50 = 383,130,929.21/x - Step 3: Cross multiply
696,403,441.28x = 961,036,716.50 × 383,130,929.21 - Step 4: Simplify right side
696,403,441.28x = 368,202,890,190,851,456 - Step 5: Solve for x
x = 368,202,890,190,851,456/696,403,441.28 - Step 6: Final answer
x = 528,720,664.44
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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.